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BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20230701T171100
DTEND;TZID=Europe/Amsterdam:20290701T171100
DTSTAMP:20260518T220052
CREATED:20230809T130227Z
LAST-MODIFIED:20241120T082444Z
UID:93109-1688231460-1877620260@www.a3veen.nl
SUMMARY:Cosmic Vision : Euclid space telescope / Euclides
DESCRIPTION:Euclid is a visible to near-infrared space telescope developed by the European Space Agency (ESA) and the Euclid Consortium\, the objective of the Euclid mission is to better understand dark energy and dark matter by accurately measuring the acceleration of the universe. \nTo achieve this\, the Korsch-type telescope will measure the shapes of galaxies at varying distances from Earth and investigate the relationship between distance and redshift. Dark energy is generally accepted as contributing to the increased acceleration of the expanding universe\, so understanding this relationship will help to refine how physicists and astrophysicists understand it. Euclid’s mission advances and complements ESA’s Planck telescope (2009 to 2013). The mission is named after the ancient Greek mathematician Euclid. Euclid is a medium-class (“M-class”) mission and is part of the Cosmic Vision campaign of ESA’s Science Programme. This class of missions have an ESA budget cap at around €500 million. Euclid was chosen in October 2011 together with Solar Orbiter\, out of several competing missions. Prior to the Russian invasion of Ukraine\, the launch was scheduled on a Soyuz ST-B in 2023; following the invasion\, Euclid will instead be launched on a Falcon 9 Block 5 on 1 July 2023. \nLinks:\nEuclid \nHow to follow the Euclid launch live \nRuimtetelescoop Euclid wil uitvinden waar het heelal van gemaakt is \nEuclid test images tease of riches to come \nEuclid ‘dark universe’ telescope team will unveil new full-color images today (May 23) \nZoom into the first page of ESA Euclid’s great cosmic atlas \nSpace Warps – ESA Euclid / Euclid Galaxy Zoo – help us classify the shapes of galaxies
URL:https://www.a3veen.nl/event/euclid-space-telescope-euclides/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240208T073300
DTEND;TZID=Europe/Amsterdam:20270208T170000
DTSTAMP:20260518T220052
CREATED:20240209T204257Z
LAST-MODIFIED:20240209T204747Z
UID:102637-1707377580-1802106000@www.a3veen.nl
SUMMARY:Plankton\, Aerosol\, Cloud\, ocean Ecosystem
DESCRIPTION:Plankton\, Aerosol\, Cloud\, ocean Ecosystem (PACE) is a NASA Earth-observing satellite mission that will continue and advance observations of global ocean color\, biogeochemistry\, and ecology\, as well as the carbon cycle\, aerosols and clouds. \nPACE will be used to identify the extent and duration of phytoplankton blooms and improve understanding of air quality. These and other uses of PACE data will benefit the economy and society\, especially sectors that rely on water quality\, fisheries and food security. After being proposed for cancellation under President Trump’s FY 2018 budget\, it was restored by Congress. The PACE project is managed by NASA Goddard Space Flight Center. The main instrument and bus were designed and built at Goddard Space Flight Center. On 4 February 2020\, NASA announced the selection of SpaceX to launch PACE on a Falcon 9\, at a total cost to NASA of US$80.4 million\, including the launch service and other mission-related costs. The total cost of the mission is $964 million\, which includes spacecraft construction\, launch\, and operations. PACE successfully launched on 8 February 2024 at 07:33. \nLinks:\nPACE
URL:https://www.a3veen.nl/event/plankton-aerosol-cloud-ocean-ecosystem/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240625T232600
DTEND;TZID=Europe/Amsterdam:20391025T000000
DTSTAMP:20260518T220052
CREATED:20241025T055924Z
LAST-MODIFIED:20241025T211716Z
UID:115444-1719357960-2203113600@www.a3veen.nl
SUMMARY:GOES-19
DESCRIPTION:GOES-19 (designated GOES-U prior to reaching geostationary orbit) is a weather satellite\, the fourth and last of the GOES-R series of satellites operated by the National Oceanic and Atmospheric Administration (NOAA). \nThe GOES-R series will extend the availability of the Geostationary Operational Environmental Satellite (GOES) system until 2036. The satellite is built by Lockheed Martin\, based on the A2100 platform. The satellite was successfully launched into space atop a SpaceX Falcon Heavy rocket on 25 June 2024 at 21:26 UTC from the Kennedy Space Center in Florida\, United States. The redesign of the loop heat pipe to prevent an anomaly\, as seen in GOES-17\, is not expected to delay the launch as it did with GOES-T. GOES-U also carries a copy of the Naval Research Laboratory’s Compact CORonagraph (CCOR) instrument which\, along with the CCOR planned for Space Weather Follow On-Lagrange 1 (SWFO-L1)\, will allow continued monitoring of solar wind after the retirement of the NASA–ESA SOHO satellite in 2025. GOES-U has a dry mass of 2\,925 kg and a fueled mass of 5\,000 kg. \nLinks:\nGEOS – R\n\nGOES-U Mission Overview \nSatellite: GOES-19 \nWatch sun erupt in 1st images from NOAA’s groundbreaking new satellite (photos)
URL:https://www.a3veen.nl/event/goes-19/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240901
DTEND;VALUE=DATE:20290902
DTSTAMP:20260518T220052
CREATED:20240403T074223Z
LAST-MODIFIED:20240403T174651Z
UID:105492-1725148800-1883001599@www.a3veen.nl
SUMMARY:Proba-3 Missie / Proba-3 Mission
DESCRIPTION:By ESA\, CC BY-SA 3.0 igo\nProba-3 zijn twee minisatellieten van de Europese Ruimtevaartorganisatie (ESA)\, ze zullen samen gelanceerd worden in een langgerekte ellipsvormige baan met een perigeum van 600 km en apogeum van 60.000 km. \nProba-3 wordt gerealiseerd door een consortium van vijftien ESA-lidstaten met als hoofdaannemer het Spaanse SENER\, het Belgische Centre Spatial uit Luik als hoofdaannemer voor de coronagraaf en het Belgische Redwire Space voor assemblage en testen. Tijdens de missie zullen twee satellieten in formatie vliegen en samen een 144 meter lange zonnecoronagraaf vormen om de corona van de zon bij de zonnerand te bestuderen. Eén ruimtevaartuig zal de optische telescoop dragen en het tweede ruimtevaartuig zal een deel van de coronagraaf dragen. Tevens worden tijdens deze missie metingen uitgevoerd voor de positionering van twee ruimtevaartuigen. \nLinks:\nProba-3 Mission
URL:https://www.a3veen.nl/event/proba-3-missie-proba-3-mission/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241007T165200
DTEND;TZID=Europe/Amsterdam:20261231T235900
DTSTAMP:20260518T220052
CREATED:20240415T075035Z
LAST-MODIFIED:20241024T161412Z
UID:106201-1728319920-1798761540@www.a3veen.nl
SUMMARY:Hera space mission
DESCRIPTION:Hera is a space mission in development at the European Space Agency in its Space Safety program\, its primary objective is to study the Didymos binary asteroid system that was impacted by DART and contribute to validation of the kinetic impact method to deviate a near-Earth asteroid in a colliding trajectory with Earth. \nIt will measure the size and the morphology of the crater created by and momentum transferred by an artificial projectile impacting an asteroid\, which will allow measuring the efficiency of the deflection produced by the impact. It will also analyze the expanding debris cloud caused by the impact. The spacecraft was launched on 7 October 2024 and will also study the results of DART impactor\, four years after NASA’s mission. DART impacted the asteroid Dimorphos\, the smaller of two objects forming the binary asteroid 65803 Didymos\, on 27 September 2022. Hera has a mass of 1128 kilograms and carries a payload of cameras\, an altimeter\, and a spectrometer. It will also carry two nano-satellite CubeSats\, called Milani and Juventas. Hera will fully characterise the composition and physical properties of the binary asteroid system including\, for the first time\, the sub-surface and internal structures. It will also perform technological demonstrations linked to operations in the vicinity of a small body and the deployment and the communication with CubeSats in interplanetary space. \nHera’s launch kit\, click picture to read\nLinks:\nESA Hera \nThermophysical Modelling of Eclipse and Occultation Events in Binary Asteroid Systems \nPlanetary defence mission Hera heading for deflected asteroid \nSpaceX rocket launches Europe’s Hera planetary defense probe to visit asteroid smacked by NASA
URL:https://www.a3veen.nl/event/hera-space-mission/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241014T120600
DTEND;TZID=Europe/Amsterdam:20301014T235900
DTSTAMP:20260518T220052
CREATED:20240428T043612Z
LAST-MODIFIED:20241014T151635Z
UID:106946-1728907560-1918252740@www.a3veen.nl
SUMMARY:NASA’s Europa Clipper Mission
DESCRIPTION:Europa Clipper (previously known as Europa Multiple Flyby Mission) is a space probe in development by NASA. \nPlanned for launch aboard a Falcon Heavy in October 2024 (the 21-day launch window period opens on October 10\, 2024)\, the spacecraft is being developed to study the Galilean moon Europa through a series of flybys while in orbit around Jupiter\, it is the largest spacecraft NASA has ever developed for a planetary mission. This mission is a scheduled flight of the Planetary Science Division\, designated a Large Strategic Science Mission\, and funded under the Planetary Missions Program Office‘s Solar System Exploration program as its second flight. It is also supported by the new Ocean Worlds Exploration Program. Europa Clipper will perform follow-up studies to those made by the Galileo spacecraft during its eight years (1995 – 2003) in Jupiter orbit\, which indicated the existence of a subsurface ocean underneath Europa’s ice crust. Plans to send a spacecraft to Europa were initially conceived with projects such as Europa Orbiter and Jupiter Icy Moons Orbiter\, in which a spacecraft would be injected into orbit around Europa. However\, due to the adverse effects of radiation from Jupiter’s magnetosphere in Europa orbit\, it was decided that it would be safer to inject a spacecraft into an elliptical orbit around Jupiter and make 44 close flybys of the moon instead. The mission began as a joint investigation between the Jet Propulsion Laboratory (JPL) and the Applied Physics Laboratory (APL)\, and will be built with a scientific payload of nine instruments contributed by JPL\, APL\, Southwest Research Institute\, University of Texas at Austin\, Arizona State University and University of Colorado Boulder. The upcoming mission complements ESA‘s Jupiter Icy Moons Explorer launched in 2023\, which will fly-by Europa twice and Callisto multiple times before moving into orbit around Ganymede. The spacecraft will use gravity assists from Mars in February 2025 and Earth in December 2026\, before arriving at Europa in April 2030. NASA will provide live coverage of prelaunch and launch activities for Europa Clipper\, the agency’s mission to explore Jupiter’s icy moon Europa. NASA now is targeting launch no earlier than 18:06 CEST\, Monday\, Oct. 14\, on a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. \nLinks:\nNASA’s Europa Clipper Mission \nEuropa Clipper \nThe search for life on Jupiter’s moon Europa – the Europa Clipper Mission \n8 Things to Know About NASA’s Mission to an Ocean Moon of Jupiter \nNASA\, SpaceX Secure Europa Clipper Ahead of Hurricane (Milton)
URL:https://www.a3veen.nl/event/nasas-europa-clipper-mission/
CATEGORIES:Astronomie,Jupiter
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250110
DTEND;VALUE=DATE:20270101
DTSTAMP:20260518T220052
CREATED:20250124T135940Z
LAST-MODIFIED:20250324T142655Z
UID:122257-1736467200-1798761599@www.a3veen.nl
SUMMARY:Save the Observatory Science Centre Herstmonceux - petition
DESCRIPTION:The Observatory Science Centre is an educational charity which has called the Grade II listed\, former home of the Royal Greenwich Observatory at Herstmonceux\, East Sussex\, home for the last 30 years. \nThe Canadian landlords\, Queen’s University\, who also own Herstmonceux Castle\, are not renewing the Science Centre’s lease\, so come the end of the 2026 season the Science Centre will be homeless. Over the years the science centre have worked tirelessly to fund and restore the site and the telescopes back to their former glory. The centre is a major venue for exhibitions\, lectures and educational programmes. The renovated telescopes provide a unique setting for the general public\, schools\, colleges\, and brownie and scout groups to learn about science\, space and the world around them. Whilst the Science Centre is in search for a new site to continue operations beyond 2026\, they should not have to leave the Observatory site at all and the historic site should be preserved for future generations as a great educational tool of significant historical importance. Please sign this petition for someone to step in and prevent the Science Centre from having to leave the Observatory site. \nLinks:\nSave the Observatory Science Centre Herstmonceux \nHerstmonceux Observatory Campaign Group
URL:https://www.a3veen.nl/event/save-the-observatory-science-centre-herstmonceux-petition/
CATEGORIES:Astronomie,Cultuur
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250429
DTEND;VALUE=DATE:20300430
DTSTAMP:20260518T220052
CREATED:20250410T010724Z
LAST-MODIFIED:20250410T111116Z
UID:123054-1745884800-1903737599@www.a3veen.nl
SUMMARY:Biomass : ESA's forest mission
DESCRIPTION:Biomass is an Earth observing satellite planned for launch by the European Space Agency (ESA) on 29 April 2025 from Kourou\, French Guiana on a Vega C launch vehicle\, the mission will provide the first comprehensive measurements of global forest biomass. \nIt is meant to last for five years\, monitoring at least eight growth cycles in the world’s forests. The Biomass satellite is part of ESA’s Living Planet Programme\, which consists of Earth observation missions. Its initial launch date was set to 2020\, but that has since been delayed to 2025. The entire cost of the mission was placed at around 400 million euros. The main scientific instrument aboard Biomass will be a synthetic aperture radar (SAR) operating at 435 MHz. The satellite will measure 10 x 12 x 20m\, weigh around 1.2 tonnes and it is set to orbit the Earth at an altitude of 666 km. All devices for assembly of the satellite structure\, including vertical transport equipment\, assembly and disassembly of satellite panels\, assembly and disassembly of the Synthetic Aperture Radar are done by the Spanish company SENER. \nLinks:\nBiomass – ESA \n#ForestDay #IntlForestDay Day of Forests / Dag van het Bos 2025 (TV FAO webcast)
URL:https://www.a3veen.nl/event/biomass-esas-forest-mission/
CATEGORIES:Astronomie,Biologie,Bossen,kennis,Natuur
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250601
DTEND;VALUE=DATE:20500701
DTSTAMP:20260518T220052
CREATED:20250212T044128Z
LAST-MODIFIED:20260416T132733Z
UID:120180-1748736000-2540246399@www.a3veen.nl
SUMMARY:Vera C. Rubin Observatory
DESCRIPTION:The Vera C. Rubin Observatory\, formerly known as the Large Synoptic Survey Telescope (LSST)\, is an astronomical observatory in Chile\, its main task will be carrying out a synoptic astronomical survey\, the Legacy Survey of Space and Time. \nThe word “synoptic” is derived from the Greek words σύν (syn ’together’) and ὄψις (opsis ‘view’)\, and describes observations that give a broad view of a subject at a particular time. The observatory is located on the El Peñón peak of Cerro Pachón\, a 2\,682-meter-high mountain in Coquimbo Region\, in northern Chile\, alongside the existing Gemini South and Southern Astrophysical Research Telescopes. The LSST Base Facility is located about 100 kilometres away from the observatory by road\, in the city of La Serena. The observatory is named for Vera Rubin\, an American astronomer who pioneered discoveries about galactic rotation rates. The Rubin Observatory will house the Simonyi Survey Telescope\, a wide-field reflecting telescope with an 8.4-meter primary mirror that will photograph the entire available sky every few nights. The telescope uses a novel three-mirror design\, a variant of three-mirror anastigmat\, which allows a compact telescope to deliver sharp images over a very wide 3.5-degree-diameter field of view. Images will be recorded by a 3.2-gigapixel charge-coupled device imaging (CCD) camera\, the largest digital camera ever constructed. \nThe LSST was proposed in 2001\, and construction of the mirror began (with private funds) in 2007. LSST then became the top-ranked large ground-based project in the 2010 Astrophysics Decadal Survey\, and the project officially began construction on 1 August 2014\, when the United States National Science Foundation (NSF) authorized the FY2014 portion ($27.5 million) of its construction budget. Funding comes from the NSF\, the United States Department of Energy\, and private funding raised by the dedicated international non-profit organization\, the LSST Discovery Alliance. Operations are under the management of the Association of Universities for Research in Astronomy (AURA). The total construction cost is expected to be about $680 million. Site construction began on 14 April 2015 with the ceremonial laying of the first stone. The first on-sky observations with the engineering camera occurred on 24 October 2024\, while system first light images were released 23 June 2025. Full survey operations are planned to begin later in 2025\, due to COVID-related schedule delays. Rubin Observatory data is scheduled to become fully public after two years. \nLinks:\nVera C. Rubin Observatory \nThe Rewriting of a Pioneering Female Astronomer’s Legacy Shows How Far Trump’s DEI Purge Will Go \nFirst celestial image unveiled from revolutionary telescope \nEarly Data from NSF–DOE Vera C. Rubin Observatory Reveals Over 11\,000 New Asteroids
URL:https://www.a3veen.nl/event/vera-c-rubin-observatory-expected-opening/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20251109T204500
DTEND;TZID=Europe/Amsterdam:20280509T000000
DTSTAMP:20260518T220052
CREATED:20251109T141249Z
LAST-MODIFIED:20251113T204734Z
UID:133068-1762721100-1841443200@www.a3veen.nl
SUMMARY:ESCAPADE mission to Mars
DESCRIPTION:Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) is a planned spacecraft mission to Mars consisting of two spacecraft known as Blue and Gold\, the mission is led by UC Berkeley’s Space Sciences Laboratory. \nOnce expected to launch in October 2024\, it is part of NASA‘s SIMPLEx program. In August 2024 the spacecraft arrived at the launch site. However\, NASA postponed the launch due to schedule and technical issues involved with the mission’s New Glenn launch vehicle\, which was set to debut with the launch of these spacecraft. Launch on the New Glenn is now planned for no earlier than November 9\, 2025. The science goals of ESCAPADE are to: \n\nunderstand the processes controlling the structure of Mars’ hybrid magnetosphere and how it guides ion flows\nunderstand how energy and momentum are transported from the solar wind through Mars’ magnetosphere\nunderstand the processes controlling the flow of energy and matter into and out of the collisional atmosphere\n\nThere are three science experiments onboard each identical spacecraft: EMAG\, EESA\, and ELP. EMAG\, which was developed by the NASA Goddard Spaceflight Center\, is a magnetometer that will measure DC magnetic fields up to 1000 nT\, mounted at the end of the boom to reduce magnetic noise from the spacecraft. EESA is an electrostatic analyzer designed to measure the energies\, fluxes\, and masses of suprathermal ions from 2 eV to 20 keV and energies and fluxes of suprathermal electrons from 3 eV to 10 keV. It is mounted on the upper deck of the spacecraft bus\, with a 240° x 120° field of view for electrons and 247.5° x 90° field of view for ions. ELP\, developed by the Space and Atmospheric Instrumentation Lab at Embry-Riddle Aeronautical University\, is a Langmuir probe consisting of three separate sensors: the multi-needle Langmuir probe (mNLP) consists of 4 thin needles mounted in two pairs ~3/4 way up the boom and measures thermal electron density; the two planar ion probes (PIPs) are mounted on the instrument deck and measure thermal ion density\, and the floating potential probe (FPP) is also mounted on the spacecraft deck and measures changes in relative spacecraft electrostatic potential. Once the nominal science orbit is achieved\, approximately six months after arriving at Mars\, Science Campaign A involves both spacecraft flying in the same orbit at varying distances from one another\, ~170 × 8\,400 km (5.66 hours) with an inclination of 65 degrees. This will last approximately six months\, at which time Blue will lower its apoapsis to 7\,000 km and Gold will raise its apoapsis to 10\,000 km. With different orbital periods (4.9 and 6.6 hours)\, the orbits will precess (due to Mars’ nonuniform gravity field) at different rates and thus separate\, allowing simultaneous measurements of distant parts of the Mars magnetosphere. This campaign will operate for approximately five months until the end of the nominal science mission less than three years after launch. Launches on November 9 and 12\, 2025\, were scrubbed due to weather conditions and solar storms; the next launch attempt is scheduled for November 13\, 2025. The launch window opens at 19:57 UTC and runs through 21:25 UTC. \nLinks:\nESCAPADE \nVoor het eerst in jaren missie naar Mars\, vuurproef voor raket Jeff Bezos
URL:https://www.a3veen.nl/event/escapade-mission-to-mars/
CATEGORIES:Astronomie,Mars
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260116
DTEND;VALUE=DATE:20260228
DTSTAMP:20260518T220052
CREATED:20260116T190519Z
LAST-MODIFIED:20260123T193239Z
UID:135790-1768521600-1772236799@www.a3veen.nl
SUMMARY:Stertelling 2026
DESCRIPTION:✨Doe jij mee? Ga sterren tellen voor de wetenschap. \nDoor samen te tellen hoeveel sterren we kunnen zien\, meten we waar in Nederland het nog écht donker is.🌌 De opdracht is simpel: ga naar buiten\, laat je ogen even een kwartiertje aan het donker wennen en tel vervolgens de sterren binnen het sterrenbeeld Orion. Je kunt ervoor kiezen om één avond mee te meten of iedere avond gedurende de meetactie\, elke meting is de moeite waard! 🕗Tellen kan in 2026 van 16 t/m 28 januari en 15 t/m 27 februari\, iedere avond vanaf 20:00. De meetactie vindt plaats in twee periodes waarin de maan zich onder de horizon bevindt. Op die manier zie je namelijk de meeste sterren. Bij volle maan\, slecht weer of een bewolkte hemel is het erg moeilijk om sterren te tellen\, het is dus hopen op goed weer. In de handleiding leer je welke sterren je moet tellen en hoe je de meting uitvoert. Je kunt er voor kiezen om één avond mee te meten of iedere avond gedurende de meetactie\, elke meting is de moeite waard. Via het telformulier kun jij je metingen kan doorgeven\, en er is de Sterrentelkaart\, waar je je eigen en andermans metingen kunt zien. De Sterrentelkaart is mogelijk gemaakt door Geodienst\, Centrum voor Informatie Technologie\, Rijksuniversiteit Groningen. \nLinks:\nStertelling \nHelp jij mee sterren tellen? Nacht wordt steeds lichter en dat is een slecht teken
URL:https://www.a3veen.nl/event/stertelling-2026/
CATEGORIES:Astronomie,Burgerwetenschap,kennis
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260212
DTEND;VALUE=DATE:20260217
DTSTAMP:20260518T220052
CREATED:20260212T090447Z
LAST-MODIFIED:20260213T090619Z
UID:136417-1770854400-1771286399@www.a3veen.nl
SUMMARY:I Heart Pluto Festival 2026
DESCRIPTION:The 2026 I Heart Pluto Festival is a four-day celebration honoring the discovery of Pluto on February 18\, 1930 and the enduring spirit of exploration that continues to define Flagstaff’s scientific community\, it is organized by Lowell Observatory. \nLinks:\nI Heart Pluto Festival
URL:https://www.a3veen.nl/event/i-heart-pluto-festival-2026/
LOCATION:Flagstaff\, Flagstaff\, United States
CATEGORIES:Astronomie,Pluto
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260217T120000
DTEND;TZID=Europe/Amsterdam:20260217T123000
DTSTAMP:20260518T220052
CREATED:20260212T050832Z
LAST-MODIFIED:20260212T151455Z
UID:136391-1771329600-1771331400@www.a3veen.nl
SUMMARY:Zonsverduistering op 17 februari 2026
DESCRIPTION:Wereldkaart van de centrale en gedeeltelijke zonsverduistering op 17 februari 2026\nOp dinsdag 17 februari 2026 vindt een ringvormige zonsverduistering plaats\, maar in Europa is deze eclips helaas onzichtbaar. \nLinks:\nZonsverduistering op 17 februari 2026 \nCatch a ‘Ring of Fire’ Eclipse and Rare Planetary Parade This February 2026
URL:https://www.a3veen.nl/event/zonsverduistering-op-17-februari-2026/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260218
DTEND;VALUE=DATE:20260219
DTSTAMP:20260518T220052
CREATED:20260218T090001Z
LAST-MODIFIED:20260218T090001Z
UID:136635-1771372800-1771459199@www.a3veen.nl
SUMMARY:Pluto : ontdekking (1930) 2026
DESCRIPTION:Pluto is een dwergplaneet in de Kuipergordel\, de voorlaatste zone van het zonnestelsel\, en werd op 18 februari 1930 ontdekt door de Amerikaanse astronoom Clyde Tombaugh tijdens het vergelijken van fotografische platen met behulp van een blink comparator op het Lowell Observatory in Arizona gedurende een zoektocht naar een onbekende Planeet X in een baan buiten Neptunus\, die was voorspeld door Percival Lowell. \nDe dwergplaneet is vernoemd naar de Romeinse god van de onderwereld\, Pluto en werd tot 2006 geclassificeerd als de negende planeet. Hij heeft in de catalogus van planetoïden nummer 134340. De sterk excentrische baan van Pluto ligt grotendeels buiten die van de planeet Neptunus. Hij draait in 248 jaar om de zon en is gemiddeld bijna 40 maal zo ver ervan verwijderd als de Aarde. Pluto heeft vijf manen\, waarvan de grootste – Charon – zoveel massa heeft dat Pluto en Charon rond een gemeenschappelijk zwaartepunt draaien dat buiten het oppervlak van Pluto zelf ligt\, waardoor beide hemellichamen door sommigen als een dubbel-dwergplaneet worden gezien. \nLinks:\nAlles wat je wil weten over dwergplaneet Pluto \nPluto Fact Sheet \nI Heart Pluto Festival 2026 \nIs Pluto a planet or not? Who cares! Our love for the King of the Kuiper Belt is stronger than ever 95 years later
URL:https://www.a3veen.nl/event/pluto-ontdekking-1930-2026/
CATEGORIES:Astronomie,Pluto
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260219
DTEND;VALUE=DATE:20260220
DTSTAMP:20260518T220052
CREATED:20260219T143338Z
LAST-MODIFIED:20260517T141651Z
UID:140620-1771459200-1771545599@www.a3veen.nl
SUMMARY:Measurement of a lithium plume from the uncontrolled re-entry of a Falcon 9 rocket - publication
DESCRIPTION:A 10-fold enhancement of lithium atoms was detected at 96 km altitude by a resonance lidar at Kühlungsborn\, Germany\, approximately 20 hours after the uncontrolled re-entry of a Falcon 9 upper stage. \nThe upper-atmospheric extension of the ICOsahedral Nonhydrostatic (ICON – a unified modeling system for global numerical weather prediction and climate studies) general circulation model\, nudged to ECMWF\, was used to calculate winds. Backwards trajectories\, including wind variability as measured by radar\, traced air masses to the Falcon 9 re-entry path at 100 km altitude\, west of Ireland. The study ‘Measurement of a lithium plume from the uncontrolled re-entry of a Falcon 9 rocket‘ presents the first measurement of upper-atmospheric pollution resulting from space debris re-entry and the first observational evidence that the ablation of space debris can be detected by ground-based lidar. The analysis of geomagnetic conditions\, atmospheric dynamics\, and ionospheric measurements supports the claim that the enhancement was not of natural origin. Our findings demonstrate that identifying pollutants and tracing them to their sources is achievable\, with significant implications for monitoring and mitigating space emissions in the atmosphere. \nLinks:\nMetals from spacecraft reentry in stratospheric aerosol particles – publication
URL:https://www.a3veen.nl/event/measurement-of-a-lithium-plume-from-the-uncontrolled-re-entry-of-a-falcon-9-rocket-publication/
CATEGORIES:Astronomie,Bibliotheek,Fysica,kennis,Klimaat
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260219T200000
DTEND;TZID=Europe/Amsterdam:20260219T210000
DTSTAMP:20260518T220052
CREATED:20260219T001331Z
LAST-MODIFIED:20260219T191403Z
UID:136707-1771531200-1771534800@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte – Das zirkumgalaktische Medium: Auf der Suche nach versteckter Materie | Dr. Ramona Augustin (TV webcast)
DESCRIPTION:Die Leibniz-Instituts für Astrophysik Potsdam (AIP) Babelsberger Sternennächte finden online statt\, in der Regel gibt es immer am 3. Donnerstag im Monat einen neuen Vortrag einer Wissenschaftlerin oder eines Wissenschaftlers des AIP\, der ab 20 Uhr auf dem YouTube-Kanal von Urknall\, Weltall und das Leben ausgestrahlt wird. \nDr. Ramona Augustin\, Astrophysikerin in der Abteilung Galaxien und Quasare\, spricht zum Thema: „Auf der Suche nach versteckter Materie: Das Zirkumgalaktische Medium“. Dabei handelt es sich um das Gas\, das sich in den Halos um Galaxien befindet. Es spielt eine wichtige Rolle bei der Galaxienentwicklung\, bleibt jedoch für das bloße Auge unsichtbar. Mit Hilfe modernster spektroskopischer Methoden\, kann es dennoch gelingen\, dieses Gas aufzuspüren\, zu analysieren und damit ein Stück mehr über die Entstehung von Galaxien und ihre Weiterentwicklung zu verstehen. \nLinks:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-das-zirkumgalaktische-medium-auf-der-suche-nach-versteckter-materie-dr-ramona-augustin-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260227
DTEND;VALUE=DATE:20260302
DTSTAMP:20260518T220052
CREATED:20260227T150448Z
LAST-MODIFIED:20260307T150505Z
UID:137631-1772150400-1772409599@www.a3veen.nl
SUMMARY:50e Landelijke Sterrenkijkdagen 2026
DESCRIPTION:De Nederlandse sterrenwachten\, planeteria en amateursterrenkundigen organiseren elk jaar de Landelijke Sterrenkijkdagen\, belangstellenden krijgen de kans om met eigen ogen door telescopen naar hemellichamen te kijken. \nBij slecht weer is er een alternatief programma met lezingen\, exposities\, dia’s en informatie over sterrenkunde als hobby. De meeste sterrenwachten\, een aantal Koninklijke Nederlandse Vereniging voor Weer- en Sterrenkunde (KNVWS) afdelingen en andere enthousiaste amateurs stellen in dat weekend hun deuren open om het geïnteresseerde publiek te laten kennismaken met sterrenkunde. Stichting ‘De Koepel’ te Utrecht was de coördinator van de landelijke Sterrenkijkdagen\, vanaf 2014 is de KNVWS de coördinator. \nLinks:\nLandelijke Sterrenkijkdagen
URL:https://www.a3veen.nl/event/50e-landelijke-sterrenkijkdagen-2026/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260303T120500
DTEND;TZID=Europe/Amsterdam:20260303T130400
DTSTAMP:20260518T220052
CREATED:20260116T061259Z
LAST-MODIFIED:20260227T174833Z
UID:135473-1772539500-1772543040@www.a3veen.nl
SUMMARY:Totale maansverduistering op 3 maart 2026
DESCRIPTION:Op dinsdag 3 maart 2026 vindt een totale maansverduistering plaats\, hierbij beweegt de Maan zich door de schaduw van de Aarde\, zodat er geen direct zonlicht meer op het maanoppervlak valt en de hele Maan veel donkerder is dan normaal. \nDe eclips is in Europa helaas onzichtbaar. De verduistering heeft een grootte van 1.15 in de kernschaduw. Een totale maansverduistering kan erg indrukwekkend zijn. Tijdens de totaliteit\, die duurt van 12:05 tot 13:04\, bevindt de Maan zich volledig in de kernschaduw van de Aarde en valt er geen direct zonlicht meer op de Maan. Echter\, een beetje zonlicht valt door de aardatmosfeer en wordt gebroken\, waardoor dit het maanoppervlak alsnog kan bereiken. Dit is met name rood licht\, waardoor er een rode gloed over de Maan komt\, deze fase wordt in de volksmond ook wel Bloedmaan genoemd\, en duurt bij deze eclips circa 59 minuten. Een maansverduistering doet zich voor wanneer de Zon\, de Aarde en de Maan op één lijn staan (met de aarde in het midden)\, oftewel als zon en maan in oppositie staan. Normaal weerkaatst de Maan het licht van de zon naar de aarde\, maar tijdens een maansverduistering staat de aarde in de weg en ontvangt de maan geen zonlicht: de maan bevindt zich in de schaduw van de aarde en wordt dus donker\, ofwel verduisterd. Maansverduisteringen treden in een patroon op. Deze zogenaamde Saros-cyclus herhaalt zich elke 18 jaar. \nLinks:\nTotale maansverduistering op 3 maart 2026 \nHow to observe the March 3 total lunar eclipse
URL:https://www.a3veen.nl/event/totale-maansverduistering-op-3-maart-2026/
CATEGORIES:Astronomie,Maan,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260315
DTEND;VALUE=DATE:20260316
DTSTAMP:20260518T220052
CREATED:20260315T010135Z
LAST-MODIFIED:20260315T210847Z
UID:138034-1773532800-1773619199@www.a3veen.nl
SUMMARY:World Contact Day 2026
DESCRIPTION:World Contact Day was first declared in March 1953 by an organization called the International Flying Saucer Bureau (IFSB)\, as a day on which all IFSB members would attempt to send a telepathic message into space. \nThe IFSB voted to hold such a day in 1953\, theorising that if both telepathy and alien life were real\, a large number of people focussing on an identical piece of text may be able to transmit the message through space. IFSB members focused on the following message during 1953: \nCalling occupants of interplanetary craft! Calling occupants of interplanetary craft that have been observing our planet EARTH. We of IFSB wish to make contact with you. We are your friends\, and would like you to make an appearance here on EARTH. Your presence before us will be welcomed with the utmost friendship. We will do all in our power to promote mutual understanding between your people and the people of EARTH. Please come in peace and help us in our EARTHLY problems. Give us some sign that you have received our message. Be responsible for creating a miracle here on our planet to wake up the ignorant ones to reality. Let us hear from you. We are your friends. \nThe 1953 celebration is referenced in the song “Calling Occupants of Interplanetary Craft“\, created in 1976 by Klaatu and later covered by The Carpenters. \nLinks:\nKlaatu Track Facts \nWorld Contact Day brings together E.T. enthusiasts from all over the world
URL:https://www.a3veen.nl/event/world-contact-day-2026/
CATEGORIES:Cultuur,Muziek,UAP/UFO
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260319T200000
DTEND;TZID=Europe/Amsterdam:20260319T210000
DTSTAMP:20260518T220052
CREATED:20260319T092418Z
LAST-MODIFIED:20260327T092941Z
UID:138614-1773950400-1773954000@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte – Weltraumwetter – Was tut sich da draußen? | Dr. Christian Vocks (TV webcast)
DESCRIPTION:Die Leibniz-Instituts für Astrophysik Potsdam (AIP) Babelsberger Sternennächte finden online statt\, in der Regel gibt es immer am 3. Donnerstag im Monat einen neuen Vortrag einer Wissenschaftlerin oder eines Wissenschaftlers des AIP\, der ab 20 Uhr auf dem YouTube-Kanal von Urknall\, Weltall und das Leben ausgestrahlt wird. \nDie Aktivität der Sonne zeigt sich in ihrem 11-jährigen Sonnenfleckenzyklus. Die starken Magnetfelder in Sonnenflecken speichern Energie\, die in solaren Flares und koronalen Massenauswürfen schlagartig freigesetzt werden kann. Die Sonnenaktivität hat erhebliche Auswirkungen auf die Erde und den erdnahen Weltraum\, wobei uns das Magnetfeld der Erde vor den direkten Auswirkungen schützt. Dieser Einfluss wird “Weltraumwetter” genannt. In seinem Vortrag stellt Christian Vocks die Ursache und Mechanismen der Sonnenaktivität vor\, und diskutiert die Auswirkung des Weltraumwetters auf die Erde und unsere technischen Systeme. \nLinks:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-weltraumwetter-was-tut-sich-da-drausen-dr-christian-vocks-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260401
DTEND;VALUE=DATE:20260501
DTSTAMP:20260518T220052
CREATED:20260401T093405Z
LAST-MODIFIED:20260401T093717Z
UID:138820-1775001600-1777593599@www.a3veen.nl
SUMMARY:#GAM2026 Global Astronomy Month 2026
DESCRIPTION:Inspired by the 100 hours of astronomy\, this annual offshoot began upon the inception of Astronomers Without Borders and remains one of its flagship programs. \nA mix of various programs ranging from Astro Arts to Observational Programs\, this festival runs the whole month of April and features partners that creates a larger community of astronomy enthusiasts that span the globe. \nLinks:\nGlobal Astronomy Month 2026
URL:https://www.a3veen.nl/event/gam2026-global-astronomy-month-2026/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260402T002400
DTEND;TZID=Europe/Amsterdam:20260411T235900
DTSTAMP:20260518T220052
CREATED:20260124T012604Z
LAST-MODIFIED:20260423T083124Z
UID:135846-1775089440-1775951940@www.a3veen.nl
SUMMARY:Artemis II - mission
DESCRIPTION:Artemis II is a planned lunar spaceflight mission under the Artemis program\, led by NASA. It is intended to be the second flight of the Space Launch System (SLS)\, and is both the first crewed mission of the Orion spacecraft and the first crewed mission to the vicinity of the Moon since Apollo 17 in 1972. \nLaunch is scheduled for no earlier than April\, 2026. The 10-day mission will carry NASA astronauts Reid Wiseman\, Victor Glover\, and Christina Koch\, along with Canadian Space Agency astronaut Jeremy Hansen\, on a free-return trajectory around the Moon and back to Earth. Glover will become the first person of color\, Koch the first woman\, and Hansen the first non-American to travel to the Moon. The flight will take the crew farther from Earth than any previous human mission before reentering Earth’s atmosphere at a record speed of approximately 40\,000 km/h. Artemis II was originally designated Exploration Mission-2 (EM-2) and was initially intended to support the now-canceled Asteroid Redirect Mission. Its objectives were revised following the establishment of the Artemis program. The Artemis II mission plan is to send four astronauts in the first crewed Orion spacecraft into a lunar flyby using the Block 1 variant of the Space Launch System. The mission profile is a multi-trans-lunar injection (MTLI)\, or multiple departure burns\, and includes a free-return trajectory from the Moon. The Orion spacecraft will be sent to a high Earth orbit with a period of roughly 24 hours. During this time the crew will perform various checkouts of the spacecraft’s life support systems as well as an in-space rendezvous and proximity operations demonstration using the spent Interim Cryogenic Propulsion Stage (ICPS) as a target. When Orion reaches perigee once again\, it will fire its main engine to complete the TLI maneuver\, which will send it onto a lunar free-return trajectory\, before returning to Earth. Artemis II will test and demonstrate optical communications to and from Earth using the Orion Artemis II Optical Communications System (O2O). The O2O hardware will be integrated into the Orion spacecraft and includes an optical module (a 100 mm telescope and two gimbals)\, a modem and control electronics. O2O will communicate with ground stations in California and New Mexico. The test device will send data to Earth with a downlink rate of up to 260 megabits per second. \nNASA concluded a wet dress rehearsal for the agency’s Artemis II test flight early Tuesday morning February 3\, 2026\, successfully loading cryogenic propellant into the SLS (Space Launch System) tanks\, sending a team out to the launch pad to closeout Orion\, and safely draining the rocket. The wet dress rehearsal was a prelaunch test to fuel the rocket\, designed to identify any issues and resolve them before attempting a launch. Engineers pushed through several challenges during the two-day test and met many of the planned objectives. To allow teams to review data and conduct a second wet dress rehearsal. NASA will roll the SLS (Space Launch System) rocket and Orion spacecraft for Artemis II off the launch pad at the agency’s Kennedy Space Center in Florida as soon as Tuesday\, Feb. 24. On Feb. 21\, managers decided to remove recently installed platforms before high winds descend on the Space Coast\, which poised teams for rollback while discussions about the issue were ongoing. Returning to the Vehicle Assembly Building at Kennedy is required to determine the cause of the issue and fix it. Once NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft arrived at the Vehicle Assembly Building (VAB) Feb. 25\, technicians immediately began addressing why the flow of helium to the SLS upper stage was interrupted as engineers were reconfiguring the rocket following a successful wet dress rehearsal on Feb. 21. To make the repairs\, teams are installing two sets of internal access platforms inside the launch vehicle stage adapter and must remove thermal blankets that cover the area they are interested in – a point on the rocket’s interim cryogenic propulsion system\, or upper stage. The area provides connections for multiple umbilicals\, including tubing used to fill the upper stage with helium. Helium is used to maintain proper environmental conditions\, and to pressurize the stage for flight. \nOn Friday\, March 20\, NASA’s Artemis II SLS rocket and Orion spacecraft arrived at Launch Pad 39B after an 11-hour journey from the Vehicle Assembly Building at the agency’s Kennedy Space Center in Florida. NASA’s crawler-transporter 2 began its  6 km trek with the integrated SLS and Orion stacked on top of the mobile launcher at 18:20 CEST. The crawler carried the Moon rocket and spacecraft slowly and steadily toward the pad. At Pad 39B\, NASA teams were gearing up for the final stretch of prelaunch preparations ahead of launch as soon as Thursday\, April 2 at 00:24 CEST. The early April launch window includes opportunities through Monday\, April 6. NASA’s SLS rocket lifted off at 00:35 CEST Wednesday April 2 sending four astronauts aboard the Orion spacecraft on a planned test flight around the Moon and back. After the mission management team polled “Go” Thursday\, NASA’s Orion spacecraft fired its main engine for five minutes and 50 seconds beginning April 3 at 01:49 CEST\, to successfully complete the translunar injection (TLI) burn\, sending the crew in Orion out of Earth orbit and on a trajectory toward the Moon. On April 7\, the Artemis II mission wrapped up a seven-hour lunar flyby\, marking humanity’s first return to the Moon since Apollo 17 in 1972 and capturing images of the lunar far side. The momentous day began at 01:02:51 CEST as the astronauts set the record for the farthest distance from Earth traveled by any human. During a planned 40-minute loss of signal as Orion passed behind the Moon\, the spacecraft and its crew made their closest approach at 01:00:46 CEST\, flying at about 6544 kilometer above the surface. Two minutes later\, the crew reached the mission’s maximum distance from Earth at 406.771 km\, setting a new record for human spaceflight. The Orion spacecraft is scheduled to splash down off the coast of San Diego at approximately 02:07 on Saturday\, April 11 (CEST). \nLinks:\nArtemis II\, at NASA \nMission Overview\, at NASA \nArtemis II “Send Your Name to Space”\, at NASA \nFocus : Mens op de maan \nArtemis 2 moon mission shouldn’t launch until late 2026\, new analysis of solar superflares suggests \nHistorische maanvlucht van start: ‘Heftiger nu er mensen aan boord zijn’ \nWat hébben we nu eigenlijk aan een menselijke maanlanding? \nArtemisprogramma / Artemis program : Artemis II
URL:https://www.a3veen.nl/event/artemis-ii-launch/
CATEGORIES:Astronomie,Maan
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260412
DTEND;VALUE=DATE:20260413
DTSTAMP:20260518T220052
CREATED:20260412T141605Z
LAST-MODIFIED:20260412T141605Z
UID:139214-1775952000-1776038399@www.a3veen.nl
SUMMARY:#HumanSpaceFlightDay / Dag van de Ruimtevaart 2026
DESCRIPTION:The UN General Assembly\, in its resolution A/RES/65/271 of 7 April 2011\, declared 12 April as the International Day of Human Space Flight “to celebrate each year at the international level the beginning of the space era for mankind\, reaffirming the important contribution of space science and technology in achieving sustainable development goals and increasing the well-being of States and peoples\, as well as ensuring the realization of their aspiration to maintain outer space for peaceful purposes.” \n12 April 1961 was the date of the first human space flight\, carried out by Yuri Gagarin\, a Soviet citizen. This historic event opened the way for space exploration for the benefit of all humanity. The General Assembly expressed its deep conviction of the common interest of mankind in promoting and expanding the exploration and use of outer space\, as the province of all mankind\, for peaceful purposes and in continuing efforts to extend to all States the benefits derived there from. \nLinks:\nDay of Human Space Flight 12 April
URL:https://www.a3veen.nl/event/humanspaceflightday-dag-van-de-ruimtevaart-2026/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260413T080000
DTEND;TZID=Europe/Amsterdam:20260413T170000
DTSTAMP:20260518T220052
CREATED:20260413T080121Z
LAST-MODIFIED:20260414T140743Z
UID:139234-1776067200-1776099600@www.a3veen.nl
SUMMARY:The Sky at Night – Destination Moon (TV BBC Four / BBC iPlayer)
DESCRIPTION:The Sky at Night is a monthly documentary television programme on astronomy produced by the BBC. \nThe show had the same permanent presenter\, Patrick Moore\, from its first broadcast on 24 April 1957 until 7 January 2013. The latter date was a posthumous broadcast\, which followed Moore’s death on 9 December 2012. This made it the longest-running programme with the same presenter in television history. Many early episodes are missing\, either because the tapes were wiped\, thrown out\, or because the episode was broadcast live and never recorded in the first place. Beginning with the 3 February 2013 edition\, the show was co-presented by Lucie Green and Chris Lintott. Since December 2013 Maggie Aderin-Pocock has been a presenter. The programme’s opening and closing theme music is “At the Castle Gate”\, from the incidental music to Pelléas et Mélisande\, written in 1905 by Jean Sibelius\, performed by the Royal Philharmonic Orchestra and conducted by Sir Thomas Beecham. \nThis episode:\nMaggie Aderin\, self-proclaimed lunar-tic\, examines Nasa’s Artemis II mission: the first crewed journey towards the moon in more than 50 years. It’s a mission designed to carry astronauts around the moon’s far side and safely home again\, marking the furthest human beings will have travelled into space. While the programme explores the mission’s progress on and off the launch pad as Artemis II prepares for its next attempt at lift-off\, George Dransfield visits Imperial College London to speak with Dr Helen Sharman\, who became the first British astronaut in 1991 when she travelled to the Mir space station. Helen offers insight into what it’s like to wait for launch and why the moon is once again drawing the world’s attention. \nBut the renewed focus on the moon goes beyond sending people there. A series of robotic landers has recently attempted to reach the lunar surface\, with mixed outcomes. To understand this new phase of exploration\, Maggie heads to the Open University to meet Dr Simeon Barber\, who is developing his latest lunar instrument. Not every mission carrying his instruments has succeeded\, but as he explains\, setbacks are as informative as successes and form part of the fast-moving international effort to return to the moon. But it’s not only astronauts and robots that get the chance to study our closest neighbour. We all see it as we go about our everyday lives\, and Pete Lawrence is on hand to highlight what to look out for if you pause for a moment\, glance upward and take in its quiet beauty. \nIt is the slow and steady progress of China’s Chang’e programme that brought back the first samples from the moon’s far side in 2024. Chris Lintott meets Professor Yang Li at University College London to find out what those samples are telling Yang and his team\, and the clues it gives us to a long-standing puzzle: the stark differences between the near and far sides of our lunar neighbour. These developing insights only strengthen the desire to explore further. To understand what Artemis II might contribute\, Maggie speaks with Nasa’s Dr Kelsey Young\, who leads the mission’s lunar science objectives. She explains what the first people to see the moon up close in more than half a century are trained to be looking out for. \nWill Artemis II be sweeping around the moon by the time this programme airs\, or will we be waiting a little longer for lift-off? Whatever happens with the journey back to the moon\, the story is advancing\, whether Artemis II flies or not. There are new scientific clues already coming from lunar samples\, and robotic landers still pushing forward with fresh attempts and data. The moon’s secrets\, history and untapped potential keep drawing us back\, urging us to look up and explore the lunar surface once again. \nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-space-mysteries-destination-moon-tv-bbc-four/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260416T200000
DTEND;TZID=Europe/Amsterdam:20260416T210000
DTSTAMP:20260518T220052
CREATED:20260416T082439Z
LAST-MODIFIED:20260417T082510Z
UID:139532-1776369600-1776373200@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte – Exoplaneten-Atmosphären - Von regnenden Rubinen bis zur Suche nach Leben | Dr. Fabio Lesjak (TV webcast)
DESCRIPTION:Die Leibniz-Instituts für Astrophysik Potsdam (AIP) Babelsberger Sternennächte finden online statt\, in der Regel gibt es immer am 3. Donnerstag im Monat einen neuen Vortrag einer Wissenschaftlerin oder eines Wissenschaftlers des AIP\, der ab 20 Uhr auf dem YouTube-Kanal von Urknall\, Weltall und das Leben ausgestrahlt wird. \nDr. Fabio Lesjak\, Wissenschaftler in der Forschungsgruppe Sternphysik und Exoplaneten am AIP\, spricht zu „Exoplaneten-Atmosphären – Von regnenden Rubinen bis zur Suche nach Leben“. Ähnlich wie die Planeten in unserem Sonnensystem sind viele Exoplaneten von Atmosphären umgeben. Durch die Untersuchung dieser Atmosphären mit Hilfe hochauflösender Spektroskopie können Forschende Rückschlüsse auf die Zusammensetzung der Atmosphäre\, ihre Temperatur und sogar über vorherrschende Winde ziehen. \n\nLinks:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-exoplaneten-atmospharen-von-regnenden-rubinen-bis-zur-suche-nach-leben-dr-fabio-lesjak-tv-webcast/
CATEGORIES:Astronomie,Exoplaneet
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260418
DTEND;VALUE=DATE:20260419
DTSTAMP:20260518T220052
CREATED:20260418T175520Z
LAST-MODIFIED:20260418T175520Z
UID:139576-1776470400-1776556799@www.a3veen.nl
SUMMARY:Meteorenzwerm α-Virginiden in april 2026
DESCRIPTION:De meteorenzwerm α-Virginiden bereikt op zaterdag 18 april 2026\, rond 11:00\, zijn maximum. \nWanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld zo’n 5 meteoren per uur vallen. Rond 01:00 staat de radiant van de zwerm in het hoogste punt (op 36°) aan de hemel. Er is dan bij ons ieder uur slechts een enkele meteoor van deze zwerm zichtbaar. In totaal zijn er\, door meteoren van andere zwermen en sporadische meteoren\, bij donkere en heldere hemel circa 5–10 “vallende sterren” per uur te zien. Op een goed donkere plek zijn circa drie keer zoveel meteoren zichtbaar als in een grote stad. De Maan komt om 06:31 op\, is voor ongeveer 0% verlicht en stoort niet. Rond 06:00 gaat het schemeren en om 06:36 komt de Zon op. \nLinks:\nMeteorenzwerm α-Virginiden in april 2026
URL:https://www.a3veen.nl/event/meteorenzwerm-%ce%b1-virginiden-in-april-2026/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260507
DTEND;VALUE=DATE:20260508
DTSTAMP:20260518T220052
CREATED:20260506T224927Z
LAST-MODIFIED:20260507T185753Z
UID:140278-1778112000-1778198399@www.a3veen.nl
SUMMARY:Meteorenzwerm η-Aquariden in mei 2026
DESCRIPTION:De meteorenzwerm η-Aquariden bereikt op donderdag 7 mei 2026\, rond 22:00\, zijn maximum\, de meteoren van de η-Aquariden zijn snel en hebben nalichtende sporen. \nWanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld zo’n 30 meteoren per uur vallen. De radiant van de zwerm staat rond 09:00 in het hoogste punt aan de hemel\, op 37° boven de horizon. Het beste moment om η-Aquariden waar te nemen is op 8 mei rond 04:45. De radiant van de zwerm staat dan ongeveer 14° boven de oostzuidoostelijke horizon\, dus niet zeer gunstig. Er is dan bij ons ieder uur niet meer dan één meteoor zichtbaar van deze zwerm. Samen met meteoren van andere zwermen\, en sporadische meteoren\, zijn er bij donkere\, heldere hemel in totaal circa 3–7 “vallende sterren” per uur te zien. De Maan komt om 02:53 op\, is voor ongeveer 65% verlicht en kan eventueel storen. Rond 05:15 gaat het schemeren en om 05:57 komt de Zon op. De meteoren van de meeste zwermen verschijnen niet allemaal op de dag van het maximum. Zo is gedurende circa 11 dagen rondom het maximum ruim de helft van het maximale aantal meteoren van de η-Aquariden te zien. Tot 25 dagen voor en na het maximum zijn nog meteoren van deze zwerm te herkennen. De zwerm heeft daarmee een vrij lange piek. Er zijn dus nog meer kansen\, voor het geval het in de nacht van het maximum niet helder is. Iedere dag verder weg van het maximum zijn er echter wel ongeveer 10% minder meteoren per uur te zien. De typische snelheden van de meteoren in deze zwerm zijn met circa 66 km/s (ongeveer 236.160 km/uur) relatief hoog. Meteoren waarnemen kan zonder speciale instrumenten. Wanneer het helder is\, volstaat het blote oog. \nLinks:\nMeteorenzwerm η-Aquariden in mei 2026
URL:https://www.a3veen.nl/event/meteorenzwerm-%ce%b7-aquariden-in-mei-2026/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20260511T230000
DTEND;TZID=Europe/Amsterdam:20260511T233000
DTSTAMP:20260518T220052
CREATED:20260510T220942Z
LAST-MODIFIED:20260511T182020Z
UID:140404-1778540400-1778542200@www.a3veen.nl
SUMMARY:The Sky at Night – Jodrell Bank: Tuning Into the Universe (TV BBC Four / BBC iPlayer)
DESCRIPTION:The Sky at Night is a monthly documentary television programme on astronomy produced by the BBC. \nThe show had the same permanent presenter\, Patrick Moore\, from its first broadcast on 24 April 1957 until 7 January 2013. The latter date was a posthumous broadcast\, which followed Moore’s death on 9 December 2012. This made it the longest-running programme with the same presenter in television history. Many early episodes are missing\, either because the tapes were wiped\, thrown out\, or because the episode was broadcast live and never recorded in the first place. Beginning with the 3 February 2013 edition\, the show was co-presented by Lucie Green and Chris Lintott. Since December 2013 Maggie Aderin-Pocock has been a presenter. The programme’s opening and closing theme music is “At the Castle Gate”\, from the incidental music to Pelléas et Mélisande\, written in 1905 by Jean Sibelius\, performed by the Royal Philharmonic Orchestra and conducted by Sir Thomas Beecham. \nThis episode:\nIt started 80 years ago with a field\, army surplus\, wartime radar and a visionary idea – and it changed how we see the universe forever. In this episode\, we step inside the remarkable story of Jodrell Bank Observatory and its towering Lovell Telescope\, an instrument that scientists have used to listen to the cosmos for almost 70 years. Taking us on this journey\, Maggie Aderin meets research scientist Dr Emmanuel K Bempong-Manful to discover how the team he is in decide who gets time on the renowned Lovell Telescope\, and what it can reveal. But connect this giant telescope with telescopes across the UK\, and it becomes the headquarters of E-Merlin. That gives astronomers incredible resolution with which to view the universe in ways never seen before – delivering powerful results that deepen our understanding of how the cosmos works. \nBut how did this site become home to such an iconic scientific landmark\, nestled in the Cheshire countryside? Professor Tim O’Brien takes Maggie on a tour of Jodrell Bank’s early history\, from its beginnings as a botanist’s field\, through the adaptation of wartime radar using army surplus\, to the construction of what was\, at the time\, the world’s largest steerable radio telescope – an ambition many believed impossible. Driven by the vision of Bernard Lovell\, the project ran dramatically over budget and needed a miracle to be completed – which arrived with the onset of the Cold War. \nAt the University of Manchester Library\, Chris Lintott joins Professor Danielle George\, GCHQ’s chief scientific adviser for national security\, to examine previously top-secret files revealing Jodrell Bank’s role at the height of Cold War tensions. From tracking potential intercontinental missiles to listening in on the Soviet race to the moon\, Chris uncovers the ingenious technologies and human stories playing out during one of the most perilous periods in modern history. Back at Jodrell Bank\, the telescope’s constant watch on the sky continues. George Dransfield meets PhD student Phoebe Ryder\, who is exploring how the Lovell’s extraordinary sensitivity can be adapted to study threats orbiting Earth – helping scientists anticipate potentially catastrophic collisions that could prevent any space launches – for years to come. Moving between past\, present and future\, this is a story of ambition\, ingenuity and quiet vigilance – a reminder that some of the most important frontiers are explored not just by looking deeper into space\, but by listening carefully to what the universe is telling us. \nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-jodrell-bank-tuning-into-the-universe-tv-bbc-four-bbc-iplayer/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260518
DTEND;VALUE=DATE:20260519
DTSTAMP:20260518T220052
CREATED:20260517T173156Z
LAST-MODIFIED:20260517T173156Z
UID:140629-1779062400-1779148799@www.a3veen.nl
SUMMARY:2026 JH2 - closest approach to Earth
DESCRIPTION:2026 JH2 is a small near-Earth asteroid with a diameter between 15 and 35 metres. \nIt was discovered by the Mount Lemmon Survey in Tucson\, Arizona on 10 May 2026. Classified as an Earth-crossing Apollo asteroid\, 2026 JH2 will pass no closer than 91\,000 ± 4\,500 kilometres from Earth on 18 May 2026\, far enough to pose no threat. During its close approach to Earth\, it will brighten to an apparent magnitude of up to 11.5\, bright enough to be seen by a small telescope under dark skies. \nLinks:\n2026 JH2 \nGrote asteroïde scheert maandag ‘rakelings’ langs de aarde: “Zo dicht als je kan komen zonder te botsen”
URL:https://www.a3veen.nl/event/2026-jh2-closest-approach-to-earth/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20261001
DTEND;VALUE=DATE:20311002
DTSTAMP:20260518T220052
CREATED:20231118T192401Z
LAST-MODIFIED:20231118T192532Z
UID:98841-1790812800-1948665599@www.a3veen.nl
SUMMARY:Nancy Grace Roman Space Telescope
DESCRIPTION:The Nancy Grace Roman Space Telescope (shortened as Roman or the Roman Space Telescope\, and formerly the Wide-Field Infrared Survey Telescope or WFIRST) is a NASA infrared space telescope in development and scheduled to launch by May 2027. \nThe Roman Space Telescope is based on an existing 2.4 m wide field of view primary mirror and will carry two scientific instruments. The Wide-Field Instrument (WFI) is a 300.8-megapixel multi-band visible and near-infrared camera\, providing a sharpness of images comparable to that achieved by the Hubble Space Telescope over a 0.28 square degree field of view\, 100 times larger than imaging cameras on the Hubble. The Coronagraphic Instrument (CGI) is a high-contrast\, small field of view camera and spectrometer covering visible and near-infrared wavelengths using novel starlight-suppression technology. Stated objectives include a search for extra-solar planets using gravitational microlensing\, along with probing the chronology of the universe and growth of cosmic structure\, with the end goal of measuring the effects of dark energy\, the consistency of general relativity\, and the curvature of spacetime. As of July 2022\, Roman is scheduled to be launched on a Falcon Heavy rocket under a contract specifying readiness by October 2026 supporting a NASA launch commitment of May 2027. \nLinks:\nNancy Grace Roman Space Telescope
URL:https://www.a3veen.nl/event/nancy-grace-roman-space-telescope/
CATEGORIES:Astronomie
END:VEVENT
END:VCALENDAR