BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//A3veen.nl - ECPv6.16.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://www.a3veen.nl
X-WR-CALDESC:Evenementen voor A3veen.nl
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Amsterdam
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20200329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20201025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20210328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20211031T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20230326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20231029T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20261025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20270328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20271031T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20280326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20281029T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20290325T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20291028T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20300331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20301027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20310330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20311026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20320328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20321031T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20330327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20331030T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20340326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20341029T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20350325T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20351028T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20360330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20361026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20370329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20371025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20380328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20381031T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20390327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20391030T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20400325T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20401028T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20211225T132000
DTEND;TZID=Europe/Amsterdam:20311225T170000
DTSTAMP:20260613T102608
CREATED:20230729T144352Z
LAST-MODIFIED:20260226T142452Z
UID:92704-1640438400-1955984400@www.a3veen.nl
SUMMARY:#UnfoldTheUniverse #JWST James Webb Space Telescope / Henrietta Leavitt Teleskop
DESCRIPTION:The James Webb Space Telescope (JWST or “Webb” / called Henrietta Leavitt Teleskop by german scientists Harald Lesch and Josef M. Gaßner) is a space telescope to succeed the Hubble Space Telescope as NASA‘s flagship astrophysics mission. \nThe JWST will provide improved infrared resolution and sensitivity over Hubble\, and will enable a broad range of investigations across the fields of astronomy and cosmology\, including observing some of the most distant events and objects in the universe\, such as the formation of the first galaxies. The primary mirror of the JWST\, the Optical Telescope Element\, is composed of eighteen 1.32 metres hexagonal mirror segments made of gold-plated beryllium which combine to create a 6.5 metres diameter mirror that is considerably larger than the Hubble’s 2.4 metres mirror. Unlike the Hubble\, which observes in the near ultraviolet\, visible\, and near infrared (0.1 to 1 μm) spectra\, the JWST will observe in a lower frequency range\, from long-wavelength visible light through mid-infrared (0.6 to 28.3 μm)\, which will allow it to observe high redshift objects that are too old and too distant for the Hubble to observe. \nThe telescope must be kept very cold in order to observe in the infrared without interference\, so it will be deployed in space near the Earth–Sun L2 Lagrangian point\, and a large sunshield made of silicon-coated and aluminium-coated Kapton will keep its mirror and instruments below 50 Kelvin (K). The JWST is being developed by NASA — with significant contributions from the European Space Agency and the Canadian Space Agency — and is named for James E. Webb\, who was the administrator of NASA from 1961 to 1968 and played an integral role in the Apollo program. The prime contractor is Northrop Grumman. Development began in 1996 for a launch that was initially planned for 2007 and a 500-million-dollar budget\, but the project has had numerous delays and cost overruns\, and underwent a major redesign in 2005. The JWST’s construction was completed in late 2016\, after which its extensive testing phase began. The launch date was Dec. 25\, 2021. \n\nLinks:\nJames Webb Space Telescope \nJames Webb Space Telescope -ESA \nWebb Home \nWebb Space Telescope \nNASA’s James Webb Space Telescope – Flickr \nJADES will go deeper than the Hubble Deep Fields \nJames Webb Space Telescope / Henrietta Leavitt Teleskop – playlist \nNASA’s Webb In Full Focus\, Ready for Instrument Commissioning \nNieuwe ruimtetelescoop kijkt naar het begin van de tijd – of net ietsje later \nWebb is now orbiting L2 \nPhotons Received: Webb Sees Its First Star – 18 Times \nNASA emails reveal internal discussions over calls to rename James Webb Space Telescope: report \nFirst Images From NASA’s Webb Space Telescope Coming Soon \nNo\, the Big Bang theory is not ‘broken.’ Here’s how we know \nWebb Looks for Fomalhaut’s Asteroid Belt and Finds Much More \nJames Webb spot monsterachtige waterpluim op Enceladus \nWebb Space Telescope’s First Year of Science Celebration \nWebb Discovers Methane\, Carbon Dioxide in Atmosphere of K2-18 b \nNASA’s James Webb Space Telescope (Flickr) \nThe (Unofficial) JWST Exoplanet Dashboard \nJWST facing potential cuts to its operational budget \nStrongest hints yet of biological activity outside the solar system / New Constraints on DMS and DMDS in the Atmosphere of K2-18 b from JWST MIRI – publication
URL:https://www.a3veen.nl/event/unfoldtheuniverse-jwst-james-webb-space-telescope-henrietta-leavitt-teleskop/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20221216
DTEND;VALUE=DATE:20251217
DTSTAMP:20260613T102608
CREATED:20231122T141648Z
LAST-MODIFIED:20231122T141731Z
UID:99037-1671148800-1765929599@www.a3veen.nl
SUMMARY:Surface Water and Ocean Topography (SWOT) mission
DESCRIPTION:The Surface Water and Ocean Topography (SWOT) mission is a satellite altimeter jointly developed and operated by NASA and CNES\, the French space agency\, in partnership with the Canadian Space Agency (CSA) and UK Space Agency (UKSA). \nThe objectives of the mission are to make the first global survey of the Earth’s surface water\, to observe the fine details of the ocean surface topography\, and to measure how terrestrial surface water bodies change over time. While past satellite missions like the Jason series altimeters (TOPEX/Poseidon\, Jason-1\, Jason-2\, Jason-3) have provided variation in river and lake water surface elevations at select locations\, SWOT will provide the first truly global observations of changing water levels\, stream slopes\, and inundation extents in rivers\, lakes\, and floodplains. In the world’s oceans\, SWOT will observe ocean circulation at unprecedented scales of 15–25 km (9.3–15.5 mi)\, approximately an order of magnitude finer than current satellites. Because it uses wide-swath altimetry technology\, SWOT will almost completely observe the world’s oceans and freshwater bodies with repeated high-resolution elevation measurements\, allowing observations of variations. \nLinks:\nSurface Water and Ocean Topography at NASA.gov \nOcean Surface Topography from Space at NASA.gov \nCnes project Library at CNES.fr \nAVISO+ portal for SWOT
URL:https://www.a3veen.nl/event/surface-water-and-ocean-topography-swot-mission/
CATEGORIES:Astronomie,Geografie,kennis
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20230413T141500
DTEND;TZID=Europe/Amsterdam:20351213T170000
DTSTAMP:20260613T102608
CREATED:20230730T164118Z
LAST-MODIFIED:20230730T165113Z
UID:92740-1681395300-2081178000@www.a3veen.nl
SUMMARY:JUpiter ICy moons Explorer
DESCRIPTION:The JUpiter ICy moons Explorer (JUICE) is an interplanetary spacecraft in development by the European Space Agency (ESA) with Airbus Defence and Space as the main contractor. \nThe mission will study three of Jupiter‘s Galilean moons: Ganymede\, Callisto\, and Europa\, all of which are thought to have significant bodies of liquid water beneath their surfaces\, making them potentially habitable environments. The mission is not focused on volcanically active Io\, a non-icy moon. The spacecraft launched on 14 April 2023 at 12:14 UTC and will reach Jupiter in July 2031 after four gravity assists and eight years of travel. In December 2034\, the spacecraft will enter orbit around Ganymede for its close up science mission\, becoming the first spacecraft to orbit a moon other than the Moon of Earth. The selection of this mission for the L1 launch slot of ESA’s Cosmic Vision science programme was announced on 2 May 2012. Its period of operations will overlap with NASA‘s Europa Clipper mission\, launching in 2024. \n\n\nNASA’s Juno Is Getting Ever Closer to Jupiter’s Moon Io Links:\nESA’s JUICE \nJuice \nAgenda – JUpiter ICy moons Explorer : launch / Agenda – JUpiter ICy moons Explorer : launch 2nd attempt \nJuice pre-launch press briefing \nHow to follow the Juice launch live
URL:https://www.a3veen.nl/event/jupiter-icy-moons-explorer/
CATEGORIES:Astronomie,Jupiter
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20230701T171100
DTEND;TZID=Europe/Amsterdam:20290701T171100
DTSTAMP:20260613T102608
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:20260613T102608
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:20260613T102608
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:20260613T102608
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:20260613T102608
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:20260613T102608
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:20250101
DTEND;VALUE=DATE:20260101
DTSTAMP:20260613T102608
CREATED:20250101T143613Z
LAST-MODIFIED:20250517T175907Z
UID:119432-1735689600-1767225599@www.a3veen.nl
SUMMARY:#Hubble35 Hubble Telescope – 35th Anniversary Hubble’s Night Sky Challenge
DESCRIPTION:Hubble is working with The Astronomical League to coordinate the “Hubble’s Night Sky Observing Challenge” program\, providing successful observers with recognition of their achievements. \nThe challenge includes two levels and observers do not need to be an Astronomical League member to participate. Do you have a telescope? Would you like to see some of the same night sky objects from the ground that Hubble has from space? You are invited to commemorate Hubble’s 35th anniversary by accepting our year-long stargazing challenge. New challenge objects will be featured weekly. On a clear night\, find a safe location with a dark sky away from bright lights\, point your telescope skyward\, and with the help of star and finder charts\, gaze upon some of the same iconic nebulae and galaxies Hubble has observed. How many of them can you find? For amateur astronomy clubs\, science centers\, museums\, and other astronomy enthusiasts\, use these monthly lists as a guide to conduct star parties that provide an opportunity for the public to see some amazing astronomical objects in person. \nLinks:\nHubble’s Night Sky Challenge
URL:https://www.a3veen.nl/event/hubble-telescope-35th-anniversary-observing-challenge/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250110
DTEND;VALUE=DATE:20270101
DTSTAMP:20260613T102608
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:20250115
DTEND;VALUE=DATE:20250303
DTSTAMP:20260613T102608
CREATED:20250115T191448Z
LAST-MODIFIED:20250312T143315Z
UID:121015-1736899200-1740959999@www.a3veen.nl
SUMMARY:Firefly’s Blue Ghost Mission 1 : Ghost Riders in the Sky
DESCRIPTION:Klik op afbeelding om te lezen\nFirefly’s Blue Ghost Mission 1\, named Ghost Riders in the Sky will deliver 10 science and technology instruments to the lunar surface as part of NASA’s Commercial Lunar Payload Services (CLPS) initiative. \nUpon launching on January 15\, Blue Ghost is spending approximately 45 days traveling to the Moon\, allowing ample time to conduct health checks on each subsystem and begin payload science. Blue Ghost is set to land in Mare Crisium on March 2 and operate payloads for a complete lunar day (about 14 Earth days). On March 14\, Firefly expects to capture high-definition imagery of a total eclipse when the Earth blocks the sun above the Moon’s horizon. Blue Ghost will then capture the lunar sunset on March 16\, providing data on how lunar dust levitates due to solar influences and creates a lunar horizon glow first documented by Eugene Cernan on Apollo 17. Following sunset\, Blue Ghost will operate several hours into the lunar night. Blue Ghost Mission 1 launched on January 15 and has nearly completed its 45-day Earth to Moon transit ahead of landing on March 2. As Blue Ghost continues its journey to the Moon\, follow along with Firefly’s mission updates along the way and stay tuned for the joint Firefly and NASA landing livestream\, scheduled to begin at 1:20 a.m. CST\, approximately 75 minutes ahead of touchdown on the Moon. \nLinks:\nBlue Ghost Mission 1
URL:https://www.a3veen.nl/event/fireflys-blue-ghost-mission-1-ghost-riders-in-the-sky/
CATEGORIES:Astronomie,Maan
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250123
DTEND;VALUE=DATE:20250124
DTSTAMP:20260613T102608
CREATED:20250123T090625Z
LAST-MODIFIED:20250216T155731Z
UID:119338-1737590400-1737676799@www.a3veen.nl
SUMMARY:Comprehensive analysis of the Apertif fast radio burst sample : Similarities with young energetic neutron stars - publication
DESCRIPTION:After more than two years of observing\, The Westerbork Synthesis Radio Telescope (WSRT) at Westerbork\, The Netherlands discovered 24 new Fast Radio Bursts (FRB)\, according to a study that appears 2025 Jan 23. \nAfter zooming in on the signal of the distant bursts\, the astronomers found a striking similarity to the radio flashes emitted by nearby\, known neutron stars. The discovery is remarkable because these nearby neutron stars already produce more energy than anything achievable on Earth. The distant stars that emit the FRB’s must somehow generate an astounding one billion times more energy than the nearby ones. \nLinks:\nAstronomers Astonished: Enigmatic Distant Radio Bursts Appear to be Neutron Stars \nAstronomen Westerbork ontrafelen lichtflits-mysterie in de ruimte
URL:https://www.a3veen.nl/event/comprehensive-analysis-of-the-apertif-fast-radio-burst-sample-similarities-with-young-energetic-neutron-stars-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250128
DTEND;VALUE=DATE:20250129
DTSTAMP:20260613T102608
CREATED:20250128T164530Z
LAST-MODIFIED:20250220T165458Z
UID:120612-1738022400-1738108799@www.a3veen.nl
SUMMARY:Persistent GeV Counterpart to the Microquasar GRS 1915+105 - publication
DESCRIPTION:Using 16 years of data from NASA’s gamma-ray detecting Fermi spacecraft\, astronomers have discovered that “microquasars\,” systems in which a black hole is slowly devouring a star\, may be small\, but they pack one heck of a punch. \nDespite their diminutive nature\, the research ‘Persistent GeV Counterpart to the Microquasar GRS 1915+105‘ suggests even microquasars snacking on small stars can have an impressive cosmic influence\, becoming powerful natural particle accelerators. This means black holes indulging in stellar meals of all sizes could be responsible for a higher-than-suspected amount of high-energy charged particles called “cosmic rays\,” which are constantly bombarding Earth. The mechanism for this particle acceleration is the near-light-speed jets that blast out from microquasars. What Martí-Devesa and team co-leader Laura Olivera-Nieto from the Max Planck Institute for Nuclear Physics found is a new source of gamma-rays that is consistent with the position of GRS 1915+105\, a well-known microquasar in which a black hole is slowly feasting on a low-mass star. \nLinks:\nBlack holes snacking on small stars create particle accelerators that bombard Earth with cosmic rays
URL:https://www.a3veen.nl/event/persistent-gev-counterpart-to-the-microquasar-grs-1915105-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250129
DTEND;VALUE=DATE:20250130
DTSTAMP:20260613T102608
CREATED:20250129T104642Z
LAST-MODIFIED:20250201T142901Z
UID:119660-1738108800-1738195199@www.a3veen.nl
SUMMARY:Pekel van planetoïde Bennu bevat mineralen die cruciaal zijn voor leven / An evaporite sequence from ancient brine recorded in Bennu samples - publication
DESCRIPTION:Een analyse\, gepubliceerd in het artikel ‘Traces of ancient brine discovered on the asteroid Bennu contain minerals crucial to life‘ (Nature\, 29 januari)\, van bodemmonsters van de planetoïde Bennu\, die door een ruimtesonde van NASA op aarde zijn afgeleverd\, laat zien dat verdampend water een pekelachtige substantie op het moederlichaam van deze ‘ruimterots’ – een brokstuk van een grotere planetoïde – heeft achtergelaten\, waarin zich allerlei organische verbindingen konden vormen. \nDe betreffende bodemmonsters werden in 2020 door NASA-ruimtesonde OSIRIS-REx op Bennu verzameld. Toen deze ruimtesonde uiteindelijk in 2023 langs de aarde vloog\, liet hij een capsule met het verzamelde materiaal boven de woestijn van de Amerikaanse staat Utah vallen\, waar wetenschappers ter plaatse waren om hem op te halen en zijn kostbare inhoud tegen vervuiling met aards materiaal te beschermen. In totaal verzamelde OSIRIS-REx ongeveer 120 gram aan materiaal\, dat voor verder onderzoek werd verdeeld en uitgeleend aan onderzoekers over de hele wereld\, onder wie Sara Russell\, kosmisch mineraloog van het Natural History Museum in Londen (VK)\, en Tim McCoy van het National Museum of Natural History (VS). Russel en collega’s hebben deze monsters geanalyseerd met behulp van een ultramoderne rasterelektronenmicroscoop\, waarmee ze details van minder dan een micrometer – een honderdste van de breedte van een mensenhaar – konden onderscheiden. Tot hun verrassing ontdekten de wetenschappers daarbij sporen van waterhoudende natriumcarbonaten. Deze chemische verbindingen waren nog nooit eerder rechtstreeks in een planetoïde of meteoriet gedetecteerd\, maar op aarde komen ze van nature voor in verdampende zoutmeren\, zoals Searles Lake in de Mojavewoestijn. De verrassende ontdekking van natriumcarbonaat bracht McCoy op het idee om mineraalmonsters in de collectie van het National Museum of Natural History te onderzoeken die eveneens natriumcarbonaten bevatten. Ook nam hij contact op met collega’s elders om te vragen of zij iets bijzonders hadden opgemerkt in andere monsters van Bennu. Alles bij elkaar leverde dit elf mineralen op die waarschijnlijk in een pekelachtige omgeving op het moederlichaam van Bennu zijn gevormd. De onderzoekers denken dat vergelijkbare pekel waarschijnlijk nog steeds voorkomt op andere objecten in ons zonnestelsel\, zoals dwergplaneet Ceres en de ijzige Saturnusmaan Enceladus\, waarop ruimtesondes natriumcarbonaat hebben gedetecteerd. \nLinks:\nPekel van planetoïde Bennu bevat mineralen die cruciaal zijn voor leven \nNASA’s Asteroid Bennu Sample Reveals Mix of Life’s Ingredients
URL:https://www.a3veen.nl/event/pekel-van-planetoide-bennu-bevat-mineralen-die-cruciaal-zijn-voor-leven-an-evaporite-sequence-from-ancient-brine-recorded-in-bennu-samples-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250131
DTEND;VALUE=DATE:20250201
DTSTAMP:20260613T102608
CREATED:20250131T175608Z
LAST-MODIFIED:20250228T190404Z
UID:119996-1738281600-1738367999@www.a3veen.nl
SUMMARY:Sterrenkundigen ontdekken de grootste superstructuur in het heelal / Unveiling the largest structures in the nearby Universe: Discovery of the Quipu superstructure - publication
DESCRIPTION:Wetenschappers hebben het grootste object in het heelal tot nu toe gevonden. \nQuipu\, zoals de superstructuur wordt genoemd\, is een gigantisch lang snoer van clusters van sterrenstelsels\, bij elkaar maar liefst 200 biljard zonsmassa (1 biljard is 10¹⁵) en 400 megaparsec lang\, da’s 1\,3 miljard lichtjaar. Quipu is een woord uit de Inca-taal en het heeft iets te maken met meten. Het onderzoek werd uitgevoerd door wetenschappers van het prestigieuze Max Planck Instituut in Duitsland en zij hebben deze superstructuur ontdekt\, die bestaat uit afzonderlijke clusters en superclusters van sterrenstelsels\, die allemaal gravitationeel met elkaar verbonden zijn. Naast Quipu zijn er nu nog vier andere superstructuren bekend\, te weten Shapley\, Serpens-Corona Borealis\, Hercules en Sculptor-Pegasus. \nLinks:\nSterrenkundigen ontdekken de grootste superstructuur in het heelal: Quipu
URL:https://www.a3veen.nl/event/sterrenkundigen-ontdekken-de-grootste-superstructuur-in-het-heelal-unveiling-the-largest-structures-in-the-nearby-universe-discovery-of-the-quipu-superstructure-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250213
DTEND;VALUE=DATE:20250218
DTSTAMP:20260613T102608
CREATED:20250206T044116Z
LAST-MODIFIED:20250218T144736Z
UID:119899-1739404800-1739836799@www.a3veen.nl
SUMMARY:I Heart Pluto Festival 2025
DESCRIPTION:The 2025 I Heart Pluto Festival is an event celebrating the 95th anniversary of Pluto’s discovery on February 18\, 1930\, it is organized by Lowell Observatory. \nFebruary 18 marks the 95th anniversary of Pluto’s discovery in Flagstaff\, Arizona and the 10th anniversary of the New Horizons spacecraft flyby of this storied planet. To celebrate\, Lowell Observatory is hosting the Sixth Annual I Heart Pluto Festival from February 13-17\, 2025 – themed “To Boldly Go Beyond New Horizons”. \nLinks:\nI Heart Pluto Festival
URL:https://www.a3veen.nl/event/i-heart-pluto-festival-2025/
CATEGORIES:Astronomie,Pluto
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20250214T220000
DTEND;TZID=Europe/Amsterdam:20250214T230000
DTSTAMP:20260613T102608
CREATED:20250214T003239Z
LAST-MODIFIED:20250214T210107Z
UID:120305-1739570400-1739574000@www.a3veen.nl
SUMMARY:Black Holes and Quantum Gravity (TV World Science Festival webcast)
DESCRIPTION:Andrew Strominger\, renowned for his work on black holes\, string theory\, and quantum gravity\, joins Brian Greene to describe his latest results and how some of them may be testable by future observations. \nThis program is part of the Big Ideas series. \nLinks:\nBlack Holes and Quantum Gravity
URL:https://www.a3veen.nl/event/black-holes-and-quantum-gravity-tv-world-science-festival-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250216
DTEND;VALUE=DATE:20250217
DTSTAMP:20260613T102608
CREATED:20250227T223303Z
LAST-MODIFIED:20250307T210546Z
UID:120932-1739664000-1739750399@www.a3veen.nl
SUMMARY:A Spiral Structure in the Inner Oort Cloud - publication
DESCRIPTION:As the Galactic tide acts to decouple bodies from the scattered disk it creates a spiral structure in physical space that is roughly 15\,000 au in length. \nThe spiral is long-lived and persists in the inner Oort cloud to the present time. In the pre-peer-reviewed paper ‘A Spiral Structure in the Inner Oort Cloud‘ scientists at the Southwest Research Institute discuss dynamics underlying the Oort spiral and (feeble) prospects for its observational detection. \nLinks:\nNASA supercomputer finds billions of comets mimicking the Milky Way’s shape: ‘The universe seems to like spirals!’
URL:https://www.a3veen.nl/event/a-spiral-structure-in-the-inner-oort-cloud-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250218
DTEND;VALUE=DATE:20250219
DTSTAMP:20260613T102608
CREATED:20250217T232102Z
LAST-MODIFIED:20250219T160852Z
UID:120452-1739836800-1739923199@www.a3veen.nl
SUMMARY:Pluto : ontdekking (1930)
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 2025 \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/
CATEGORIES:Astronomie,Pluto
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250225
DTEND;VALUE=DATE:20250226
DTSTAMP:20260613T102608
CREATED:20250225T084248Z
LAST-MODIFIED:20250226T085416Z
UID:120826-1740441600-1740527999@www.a3veen.nl
SUMMARY:Detection of ferrihydrite in Martian red dust records ancient cold and wet conditions on Mars - publication
DESCRIPTION:Mars is widely known for its rusty red color — many people even refer to it as just the “Red Planet” — but research suggests the chemistry behind Mars’ rosy hue may actually hold important information. \nFor decades\, spacecraft and rovers have gathered data pointing to a familiar explanation behind Mars’ redness: the rusting of iron minerals\, namely iron oxide\, in the planet‘s dust. That’s the same compound that gives your standard “rust” on Earth its red color. Scientists already knew that on Mars\, over billions of years\, iron oxide has been ground into dust and carried across the planet by powerful winds\, a process still shaping the Martian landscape today. However\, not all iron oxides are the same\, so experts have long debated the precise nature of Martian rust. Understanding how this rust formed offers a crucial glimpse into the planet’s past environment — was it once warm and wet\, or always cold and dry? And\, more importantly\, did it ever support life? \nLinks:\nWhat makes Mars the ‘Red’ Planet? Scientists have some new ideas
URL:https://www.a3veen.nl/event/detection-of-ferrihydrite-in-martian-red-dust-records-ancient-cold-and-wet-conditions-on-mars-publication/
CATEGORIES:Astronomie,Mars
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250228
DTEND;VALUE=DATE:20250301
DTSTAMP:20260613T102608
CREATED:20240602T104749Z
LAST-MODIFIED:20240602T210240Z
UID:108832-1740700800-1740787199@www.a3veen.nl
SUMMARY:Planetenparade / Planetaire uitlijning 2025
DESCRIPTION:Links:\nPlanetenparade / Planetaire uitlijning 2024
URL:https://www.a3veen.nl/event/planetenparade-planetaire-uitlijning-2025/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20250305T040900
DTEND;TZID=Europe/Amsterdam:20250305T045900
DTSTAMP:20260613T102608
CREATED:20250209T044048Z
LAST-MODIFIED:20250704T093025Z
UID:120032-1741147740-1741150740@www.a3veen.nl
SUMMARY:SPHEREx - launch
DESCRIPTION:SPHEREx (Spectro-Photometer for the History of the Universe\, Epoch of Reionization\, and Ices Explorer) is a future near-infrared space observatory that will perform an all-sky survey to measure the near-infrared spectra of approximately 450 million galaxies. \nIn February 2019\, SPHEREx was selected by NASA for its next Medium-Class Explorers mission\, beating out two competing mission concepts: Arcus and FINESSE. SPHEREx is scheduled to launch on March 5\, 2025 at 04:09 (MET) on a Falcon 9 Block 5 rocket alongside the PUNCH microsatellites from Vandenberg Space Force Base. The principal investigator is James Bock at California Institute of Technology (Caltech) in Pasadena\, California. \nLinks:\nSPHEREx – NASA \nSearching the entire sky for the secrets to our universe \nAn All-Sky Spectral Survey \nHow NASA’s SPHEREx Mission Will Share Its All-Sky Map With the World
URL:https://www.a3veen.nl/event/spherex-launch/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250307
DTEND;VALUE=DATE:20250310
DTSTAMP:20260613T102608
CREATED:20250307T043202Z
LAST-MODIFIED:20250307T154422Z
UID:121369-1741305600-1741564799@www.a3veen.nl
SUMMARY:Landelijke Sterrenkijkdagen 2025
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 \nLandelijke Sterrenkijkdagen op 7\, 8 en 9 maart 2025
URL:https://www.a3veen.nl/event/landelijke-sterrenkijkdagen-2025/
LOCATION:Nederland\, Nederland
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250312
DTEND;VALUE=DATE:20250313
DTSTAMP:20260613T102608
CREATED:20250312T022402Z
LAST-MODIFIED:20250312T144625Z
UID:121575-1741737600-1741823999@www.a3veen.nl
SUMMARY:Sporadic radio pulses from a white dwarf binary at the orbital period - publication
DESCRIPTION:In the past three years\, astronomers have discovered a mysterious new type of radio source called these long period transients. \nThese objects emit bright radio signals that repeat every few minutes to every few hours. The astronomers have found about a dozen examples\, but we still don’t understand which type of star could emit radio pulses in this peculiar way. In the research ‘Sporadic radio pulses from a white dwarf binary at the orbital period‘\, the astronomers have discovered a new long period transient. Furthermore\, they identified the stars responsible for the mysterious radio flashes – a breakthrough never achieved before. \nLinks:\nMysterious radio pulses from space have been tracked down – and the source is not what astronomers expected
URL:https://www.a3veen.nl/event/sporadic-radio-pulses-from-a-white-dwarf-binary-at-the-orbital-period-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20250314T072600
DTEND;TZID=Europe/Amsterdam:20250314T083300
DTSTAMP:20260613T102608
CREATED:20250310T010135Z
LAST-MODIFIED:20250311T121728Z
UID:121482-1741937160-1741941180@www.a3veen.nl
SUMMARY:Totale maansverduistering op 14 maart 2025
DESCRIPTION:Op vrijdag 14 maart 2025 vindt een totale maansverduistering plaats\, 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.\nNormaal 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. In de Benelux is alleen het begin van de eclips zichtbaar. De verduistering heeft een grootte van 1.18 in de kernschaduw. Tijdens de totaliteit\, die duurt van 07:26 tot 08:33\, 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 67 minuten. \nLinks:\nTotale maansverduistering op 14 maart 2025 \nThe Next Full Moon is the Worm Moon  \nWhat to know about this week’s ‘blood worm moon’ total lunar eclipse \nThe Worm “Blood” Moon: Full Moon for March 2025
URL:https://www.a3veen.nl/event/totale-maansverduistering-op-14-maart-2025/
CATEGORIES:Astronomie,Maan
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250315
DTEND;VALUE=DATE:20250316
DTSTAMP:20260613T102608
CREATED:20250315T171722Z
LAST-MODIFIED:20250315T172841Z
UID:121762-1741996800-1742083199@www.a3veen.nl
SUMMARY:World Contact Day 2025
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-2025/
CATEGORIES:Cultuur,Muziek,UAP/UFO
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250317
DTEND;VALUE=DATE:20250318
DTSTAMP:20260613T102608
CREATED:20250319T090328Z
LAST-MODIFIED:20250319T091322Z
UID:121892-1742169600-1742255999@www.a3veen.nl
SUMMARY:JWST-TST High Contrast: Living on the Wedge\, or\, NIRCam Bar Coronagraphy Reveals CO2 in the HR 8799 and 51 Eri Exoplanets' Atmospheres - publication
DESCRIPTION:Astronomers have announced that the James Webb Space Telescope (JWST) has successfully captured its first direct images of carbon dioxide gas on a planet beyond the solar system\, the findings are both a testament to the telescope’s power in direct imaging and provide valuable insights into how planets form\, both within our solar system and across the universe. \nThe latest JWST observations focused on the HR 8799 system\, which consists of four planets orbiting their host star about 130 light-years from Earth in the constellation Pegasus. Previous observations have shown four of them are more massive than Jupiter\, and are in orbits with periods that range from decades to centuries. This system has long intrigued astronomers studying planet formation\, largely because of its youth — at just 30 million years old\, these planets still radiate leftover heat from their births\, which JWST was able to observe in wavelengths that tease out the specific gases and other atmospheric details. \nLinks:\nJames Webb Space Telescope sees four giant alien planets circling nearby star
URL:https://www.a3veen.nl/event/jwst-tst-high-contrast-living-on-the-wedge-or-nircam-bar-coronagraphy-reveals-co2-in-the-hr-8799-and-51-eri-exoplanets-atmospheres-publication/
CATEGORIES:Astronomie,Exoplaneet
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250319
DTEND;VALUE=DATE:20250320
DTSTAMP:20260613T102608
CREATED:20250319T152120Z
LAST-MODIFIED:20250321T154003Z
UID:122107-1742342400-1742428799@www.a3veen.nl
SUMMARY:New DESI Results Strengthen Hints That Dark Energy May Evolve - publication
DESCRIPTION:The Dark Energy Spectroscopic Instrument (DESI) collaboration published an analysis of dark energy using their first three years of collected data\, which spans nearly 15 million galaxies and quasars. \nResearchers combined the DESI data with information from studies of the cosmic microwave background\, supernovae\, and weak gravitational lensing. The standard model of cosmology struggles to explain all the observations when taken together — but a model where dark energy’s influence changes over time seems to fit the data well. DESI is an international experiment with more than 900 researchers from over 70 institutions around the world and is managed by the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab). The collaboration shared their findings in multiple papers that will be posted on the online repository arXiv and in a presentation at the American Physical Society’s Global Physics Summit in Anaheim\, California. \nLinks:\nNew DESI Results Strengthen Hints That Dark Energy May Evolve
URL:https://www.a3veen.nl/event/new-desi-results-strengthen-hints-that-dark-energy-may-evolve-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20250320T200000
DTEND;TZID=Europe/Amsterdam:20250320T210000
DTSTAMP:20260613T102608
CREATED:20250320T002904Z
LAST-MODIFIED:20250321T205733Z
UID:121989-1742500800-1742504400@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte – Sterne im Computertomographen | Dr. Axel Schwope (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. \nLinks:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-sterne-im-computertomographen-dr-axel-schwope-tv-webcast/
CATEGORIES:Astronomie,kennis
END:VEVENT
END:VCALENDAR