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BEGIN:VEVENT
DTSTART;VALUE=DATE:20200210
DTEND;VALUE=DATE:20270211
DTSTAMP:20260601T014225
CREATED:20200210T110815Z
LAST-MODIFIED:20250612T103614Z
UID:126725-1581292800-1802303999@www.a3veen.nl
SUMMARY:Solar Orbiter
DESCRIPTION:De Solar Orbiter (SOLO) is een ruimtemissie van de Europese Ruimtevaartorganisatie (ESA) en de Amerikaanse Ruimtevaartorganisatie (NASA)\, het doel is om een observatiesatelliet in een baan rond de Zon te brengen. \nDe onbemande ruimtesonde werd op 10 februari 2020\, om 4:03 (UTC) met een Atlas V-411-raket vanaf lanceercomplex SLC-41 op Cape Canaveral AFS gelanceerd. Vanaf een elliptische baan observeert de Solar Orbiter de Zon op dichte afstand\, tot maar 0\,22 AU (ongeveer een vijfde van de afstand tussen de zon en de Aarde)\, ofwel 48 keer de straal van de Zon. Dit maakt het mogelijk om foto’s te nemen van de zon op hogere resolutie dan ooit tevoren. Vooral de poolregio’s van de Zon zijn met de satelliet veel beter te zien dan vanaf de Aarde. Naast het fotograferen\, observeren en beter in kaart brengen van de Zon doet de ruimtesonde ook onderzoek naar de heliosfeer\, het gebied rond de Zon waar de zonnewind overheerst. De ruimtesonde wordt voortgedreven door een ionenmotor (Solar Electric Primary Propulsion). Deze zet met behulp van zonnepanelen zonlicht om in elektriciteit. Hiermee worden gasatomen elektrisch geladen. Als deze het ruimtevaartuig verlaten stuwen ze door hun reactiekracht het ruimtevaartuig voort. Dit betrekkelijk nieuwe type aandrijving werd met succes getest door de SMART-1\, een observatiesatelliet van ESA die van 2003 tot 2006 in een baan rond de Maan draaide. De Solar Orbiter is de opvolger van twee eerdere ruimtesondes naar de Zon\, de Ulysses (gelanceerd in 1990) en de SOHO (gelanceerd in 1995). Het oorspronkelijke besluit tot de Solar Orbiter-missie werd in 2001 genomen.[2] Na enkele jaren van voorbereidend onderzoek kreeg het programma in 2007 het groene licht voor de formele definitiefase. De Solar Orbiter is onderdeel van het HELEX (Heliophysics Explorers)-onderzoeksprogramma\, samen met de Parker Solar Probe van NASA die in augustus 2018 gelanceerd is en de Zon nog veel dichter benadert dan de Solar Orbiter\, tot maar 9 keer de straal van de Zon. NASA werkt ook mee aan de Solar Orbiter: de organisatie was verantwoordelijk voor de boeking van de Atlas V-lanceerraket en leverde daarnaast ook instrumenten. \nWhy Solar Orbiter is angling towards the Sun’s poles\, klik op afbeelding voor vergroting of hier voor info\n\nLinks:\nSolar Orbiter \nSolar Orbiter gets world-first views of the Sun’s poles
URL:https://www.a3veen.nl/event/solar-orbiter/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20211225T132000
DTEND;TZID=Europe/Amsterdam:20311225T170000
DTSTAMP:20260601T014225
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:20260601T014225
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:20260601T014225
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:20260601T014225
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;VALUE=DATE:20231001
DTEND;VALUE=DATE:20250101
DTSTAMP:20260601T014225
CREATED:20230812T235221Z
LAST-MODIFIED:20231012T115731Z
UID:93378-1696118400-1735689599@www.a3veen.nl
SUMMARY:Heliophysics Big Year
DESCRIPTION:The Heliophysics Big Year is a global celebration of solar science and the Sun’s influence on Earth and the entire solar system. \nDuring the Heliophysics Big Year\, you will have the opportunity to participate in many solar science events such as watching solar eclipses\, experiencing an aurora\, participating in citizen science projects\, and other fun Sun-related activities. Heliophysics is the study of our star and how it interacts with everything in our solar system. The “Big Year” is a concept that originated with citizen scientists in the bird-watching community. During their Big Year\, birders attempt to observe and study as many bird species as possible during a calendar year\, and we are challenging you to do the same with our Sun. \nLinks:\nThe Heliophysics Big Year \nBig Year
URL:https://www.a3veen.nl/event/heliophysics-big-year/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240101
DTEND;VALUE=DATE:20250101
DTSTAMP:20260601T014225
CREATED:20240101T192244Z
LAST-MODIFIED:20240920T182639Z
UID:113551-1704067200-1735689599@www.a3veen.nl
SUMMARY:Jaar van het Planetarium
DESCRIPTION:By Bundesarchiv\, Bild 183-1987-1008-020 / CC-BY-SA 3.0\, CC BY-SA 3.0 de\nIn 1923\, ZEISS presented the world’s first projection planetarium developed for the Deutsches Museum in Munich\, the first public demonstration and hence the birth of the modern planetarium took place on this occasion. \nOn 7 May 1925\, the ZEISS Planetarium in the Deutsches Museum began regular operation. Today\, as modern high-tech domes\, star theaters offer fascinating fulldome shows and are still a crowd puller after 100 years. \nLinks:\n100 years of ZEISS planetariums
URL:https://www.a3veen.nl/event/jaar-van-het-planetarium/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240208T073300
DTEND;TZID=Europe/Amsterdam:20270208T170000
DTSTAMP:20260601T014225
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;VALUE=DATE:20240321
DTEND;VALUE=DATE:20250106
DTSTAMP:20260601T014225
CREATED:20240321T190242Z
LAST-MODIFIED:20240912T180855Z
UID:113068-1710979200-1736121599@www.a3veen.nl
SUMMARY:Dichter bij het Zwarte Gat - tentoonstelling
DESCRIPTION:Zwarte Gaten: Mysterieuze plekken in de kosmos\, die alles opslokken en waar niets\, zelfs licht niet\, uit ontsnappen kan. \nHet zijn misschien wel de spannendste fenomenen van het heelal\, waar ook de wetenschappers nog lang niet alles van begrijpen. Iedereen heeft van zwarte gaten gehoord en heeft er wel een beeld bij. De spannende\, extreme eigenschappen van deze plekken zijn inspiratie geweest voor tal van verhalen\, films en games. Er wordt al decennialang onderzoek naar gedaan en de eerste afbeelding van een zwart gat staat nog vers in het geheugen gegrift. Maar wat zijn zwarte gaten dan eigenlijk?  Zijn ze echt gevaarlijk? Moeten we zwarte gaten vrezen? Is een zwart gat wel een gat? In de nieuwe tentoonstelling van Rijksmuseum Boerhaave word je stapsgewijs door deze boeiende materie geloodst\, zodat je aan het einde van je bezoek iets dichter bij het zwarte gat bent gekomen. In de tentoonstelling zijn bijzondere objecten en topstukken te zien\, zowel uit de eigen collectie van het museum als bruiklenen van onder meer Roger Penrose persoonlijk\, het Rijksmuseum\, Kunstmuseum Den Haag en het Science Museum in Londen. Zo zijn er prenten van Escher\, de eerste brief van Escher aan Penrose\, persoonlijke objecten van zwartegatenpionier Stephen Hawking\, de pen van Einstein\, een litho van Jean Pierre Luminet\, tekeningen\, brieven en een puzzel van Roger Penrose en couture uit de Black Hole collectie van niemand minder dan Viktor & Rolf. Nieuwsgierig geworden? Na een bezoek aan de tentoonstelling over Zwarte Gaten hoef je niet meer bang te zijn voor het ogenschijnlijk enge ‘monster’. Ontdek waarom ook wetenschappers eindeloos gefascineerd zijn door zwarte gaten en kom meer te weten over de ongrijpbaarheid van ons heelal. \nLinks:\nDichter bij het Zwarte Gat \nDichter bij het Zwarte Gat – Museumtijdschrift
URL:https://www.a3veen.nl/event/dichter-bij-het-zwarte-gat-tentoonstelling/
LOCATION:Rijksmuseum Boerhaave\, Lange Sint Agnietenstraat 10\, Leiden\, Netherlands
CATEGORIES:Astronomie,Zwart gat
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240625T232600
DTEND;TZID=Europe/Amsterdam:20391025T000000
DTSTAMP:20260601T014225
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:20260601T014225
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:20260601T014225
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;VALUE=DATE:20241014
DTEND;VALUE=DATE:20241019
DTSTAMP:20260601T014225
CREATED:20241002T015813Z
LAST-MODIFIED:20241007T130142Z
UID:114171-1728864000-1729295999@www.a3veen.nl
SUMMARY:International Astronautical Congress 2024
DESCRIPTION:Every year\, the International Astronautical Federation with the support of the International Academy of Astronautics and the International Institute of Space Law (IISL)\, holds the International Astronautical Congress (IAC) which is hosted by one of the national society members of the IAF. \nThey are an annual meeting of the actors in the discipline of space\, and are generally held in late September or early October. They consist of plenary sessions\, lectures and meetings. The IAC is attended by the agency heads and senior executives of the world’s space agencies. As the Second World War came to an end\, the United States and the Soviet Union held different and competing political worldviews. As the Cold War began to take shape\, communication between the two countries became less frequent. Both countries turned their focus to achieving military superiority over the other. Six years after the Iron Curtain fell\, the International Astronautical Federation (IAF) was formed by scientists from all over Europe in the field of space research in order to collaborate once more. During the years of the Space Race\, the IAF was one of the few forums where members of both East and West Europe could meet during the annual International Astronautical Congresses. \nThe 75th International Astronautical Congress (IAC) will see the arrival in Milan of over 8\,000 experts from industry\, research and the institutions and place Italy at the heart of the international debate on the use of Space to support sustainability. Under the motto “Responsible Space for Sustainability”\, the intention of the IAC 2024 is to highlight the importance of Space as an environment that must be kept secure and open to exploration\, peaceful use and international co-operation by present and future generations in the interests of the planet and all nations\, regardless of their level of development and without discrimination of any kind. With this aim more than 8\,000 experts from space agencies\, companies\, research centres and associations from across the world will meet at IAC 2024 – organized with the contribution of AIM Group International – in the Milano Congress Center (Allianz MiCo)\, Europe’s largest conference venue. There are currently just under 8\,000 satellites in orbit\, around 5\,000 of which are operational\, and this number is set to grow significantly in the next few years. \nEver more countries and public and private players are becoming actively involved in the space economy. The Earth’s orbit is nonetheless a limited resource\, and any overcrowding involves risks in terms of security\, light pollution and the availability of data and services provided by space technologies. In the economy\, industry\, agriculture\, transport\, energy\, finance\, urban development\, communications\, environmental monitoring\, and security\, space systems are a fundamental tool in the creation of a more digital\, green and sustainable future. They are likewise vital for the functioning of society\, the economy and global trade. Italy is at the forefront in the challenge of using Space responsibly in the name of sustainability. It is one of the few countries in the world with a complete Space economy supply chain: from manufacturing\, through new applications development and satellite services management\, to propulsion and launch systems. The country’s expertise can be found in the research sector and in companies of all sizes\, from start-ups and SMEs to large-scale industry\, supported by the institutions. \nLinks:\nInternational Astronautical Congress \nWorld Space Week 2024
URL:https://www.a3veen.nl/event/international-astronautical-congress-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241014T120600
DTEND;TZID=Europe/Amsterdam:20301014T235900
DTSTAMP:20260601T014225
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:20241015
DTEND;VALUE=DATE:20241016
DTSTAMP:20260601T014225
CREATED:20241015T160625Z
LAST-MODIFIED:20241020T160706Z
UID:115191-1728950400-1729036799@www.a3veen.nl
SUMMARY:Comparison of a new type of Dark Matter with the Milky Way and M31 grand rotation curves - publication
DESCRIPTION:Links:\nComparison of a new type of Dark Matter with the Milky Way and M31 grand rotation curves
URL:https://www.a3veen.nl/event/comparison-of-a-new-type-of-dark-matter-with-the-milky-way-and-m31-grand-rotation-curves-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241016T010000
DTEND;TZID=Europe/Amsterdam:20241016T020000
DTSTAMP:20260601T014225
CREATED:20241010T050738Z
LAST-MODIFIED:20241010T151513Z
UID:114680-1729040400-1729044000@www.a3veen.nl
SUMMARY:Heliophysics Big Year & Math - webinar (TV Zoom webcast)
DESCRIPTION:HBY connection: The Sun’s 11-year activity cycle will be nearing its maximum point during this month\, which will include activities to explore the solar cycle\, solar flares\, cosmic rays and astronaut hazards. \nHeliophysics concepts and NGSS connections: FHE3.1 The Sun is made of churning plasma\, causing the surface to be made of complex\, tangled magnetic fields. (PS1\, PS2\, ESS1\, ESS2). FHE 2.2 The Sun defines the space around it\, which is different from interstellar space. (PS2\, ESS1\, ESS2) \nLinks:\nRegistration Link \nHeliophysics Big Ideas
URL:https://www.a3veen.nl/event/heliophysics-big-year-math-webinar-tv-zoom-webcast/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241017T200000
DTEND;TZID=Europe/Amsterdam:20241017T210000
DTSTAMP:20260601T014225
CREATED:20241017T080341Z
LAST-MODIFIED:20241018T094959Z
UID:114973-1729195200-1729198800@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte - Die Physik der Galaxienentstehung (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. \nWie entstehen Galaxien in unserem Universum? Welche physikalischen Prozesse sind dafür verantwortlich? Mit Hilfe moderner Computersimulationen sind Forschende in der Lage genau das herauszufinden. Beginnend im frühen Universum\, unter Berücksichtigung der kosmischen Expansion und der Anziehungskräfte durch die Gravitation\, können sie die großräumige Struktur und die Verteilung der Galaxien erklären. Für das Verständnis der Sternentstehung in Galaxien müssen zusätzliche Aspekte berücksichtigt werden\, insbesondere die Gasdynamik und die Wechselwirkung von Gas mit Strahlung. Eines der wichtigsten Forschungsergebnisse der letzten Jahre ist die Rolle von Rückkopplungseffekten von bereits entstandenen Sternen und aktiven Galaxienkernen auf die Entwicklung der Galaxie selbst. So heizen Sterne\, die in einer Supernova explodieren\, das umgebende Gas auf und treiben es durch starke Winde auseinander\, was die Entstehung neuer Sterne erschweren kann. Diese komplexen Rückkopplungseffekte im Detail zu verstehen\, ist das Ziel aktueller Forschung am Leibniz-Institut für Astrophysik. \nBitte beachten Sie\, dass fast alle Vorträge auf Deutsch gehalten werden. \nLink:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-die-physik-der-galaxienentstehung-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241019T080000
DTEND;TZID=Europe/Amsterdam:20241019T170000
DTSTAMP:20260601T014225
CREATED:20241019T052843Z
LAST-MODIFIED:20241019T153358Z
UID:115115-1729324800-1729357200@www.a3veen.nl
SUMMARY:Meteorenzwerm ε-Geminiden oktober 2024
DESCRIPTION:De meteorenzwerm ε-Geminiden bereikt op zaterdag 19 oktober 2024\, rond 08:00\, zijn maximum. \nZelfs wanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld slechts zo’n 3 meteoren per uur vallen. Rond 06:30 staat de radiant van de zwerm in het hoogste punt (op 64°) aan de hemel. Er is dan bij ons ieder uur slechts een enkele meteoor van deze zwerm zichtbaar. 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 is voor ongeveer 95% verlicht en is een flinke stoorzender; dit jaar zijn hierdoor alleen de helderste meteoren zichtbaar. Rond 07:45 gaat het schemeren en om 08:12 komt de Zon op. Over het algemeen zijn de de meteoren van een zwerm niet alleen op de dag van het maximum zichtbaar. Zo is gedurende circa 15 dagen rondom het maximum meer dan 50% van het maximum aantal meteoren per uur van de ε-Geminiden te zien. 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 snelheden van de meteoren van de ε-Geminiden zijn behoorlijk hoog: zo’n 69 km/s\, dat is circa 248.040 km/uur! Er is geen speciale apparatuur nodig om meteoren waar te kunnen nemen. Wanneer het helder is\, volstaat het blote oog. \nLinks:\nDe meteorenzwerm ε-Geminiden in oktober 2024 \nEpsilon Geminids
URL:https://www.a3veen.nl/event/meteorenzwerm-%ce%b5-geminiden-oktober-2024/
CATEGORIES:Astronomie,Meteoren
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241024
DTEND;VALUE=DATE:20241025
DTSTAMP:20260601T014226
CREATED:20241024T111103Z
LAST-MODIFIED:20241104T123000Z
UID:115978-1729728000-1729814399@www.a3veen.nl
SUMMARY:Expansion Properties of the Young Supernova Type Iax Remnant Pa 30 Revealed - publication
DESCRIPTION:Supernova remnant called Pa 30—the leftover remains of a supernova explosion that was witnessed from Earth in the year 1181\, unusual filaments of sulfur protrude beyond a dusty shell of ejected material. \nThe remains of the original star that exploded\, now a hot inflated star which may cool to become a white dwarf\, are seen at the center of the remnant. The Keck Cosmic Web Imager (KCWI) at the W.M. Keck Observatory in Hawai‘i has mapped the strange filaments in 3-D and shown that they are flying outward at approximately 1\,000 kilometers per second. In 1181\, Japanese and Chinese astronomers saw a bright light appear in the constellation Cassiopeia. It shone for six months\, and those ancient observers couldn’t have known it was an exploding star. To them\, it looked like some type of temporary star that shone for 185 days. In the modern astronomical age\, we’ve learned a lot more about the object. It was a supernova called SN 1181 AD\, and we know that it left behind a remnant “zombie” star. Research titled “Expansion Properties of the Young Supernova Type Iax Remnant Pa 30 Revealed.” examines the supernova’s aftermath and the strange filaments of gas it left behind. \nThough it was seen almost 850 years ago\, only modern astronomers have been able to explain SN 1181. For a long time\, it was an orphan. While astronomers were able to identify the modern remnants of many other historical supernovae\, SN 1181 was stubborn. Finally\, in 2013\, amateur astronomer Dana Patchick discovered a nebula with a central star and named it Pa 30. Research in 2021 showed that Pa 30 is the remnant of SN 1181. The SN exploded when two white dwarfs merged and created a Type 1ax supernova. SN 1181 is unusual. When supernovae explode\, there’s usually only a black hole or a neutron star left as a remnant. But SN 1181 left part of a white dwarf behind\, an intriguing object astronomers like to call a zombie star. Strange filaments resembling dandelion petals extend from this strange star\, adding to the object’s mystery. Researchers have gotten a new\, close-up look at Pa 30 and published their results in The Astrophysical Journal Letters. \nLinks:\nThis Ancient Supernova Remnant Looks Like a Stellar Dandelion
URL:https://www.a3veen.nl/event/expansion-properties-of-the-young-supernova-type-iax-remnant-pa-30-revealed-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241031
DTEND;VALUE=DATE:20241101
DTSTAMP:20260601T014226
CREATED:20241030T071738Z
LAST-MODIFIED:20241030T173254Z
UID:115687-1730332800-1730419199@www.a3veen.nl
SUMMARY:Dark Matter Day 2024
DESCRIPTION:On and around October 31st\, 2024\, the world will celebrate the historic hunt for the unseen—something that scientists refer to as dark matter. \nSince 2017\, more than 350 global\, regional\, and local events have been held on and around October 31 by institutions and individuals looking to engage the public in discussions about what we already know about dark matter and the many experiments seeking to solve its mysteries. Scientists believe that dark matter\, which we have so far only detected through its gravity-based effects in space\, makes up about a quarter (26.8 percent) of the total mass and energy of the universe\, and something that is driving the universe’s accelerating expansion—which scientists call dark energy—accounts for another 68.3 percent. The ordinary matter\, like stars and planets and galaxies\, makes up just 4.9 percent of the total mass and energy of the universe. \nLinks:\nDark Matter Day 2024 \nDiscover the Mysteries of the Universe and the Brain
URL:https://www.a3veen.nl/event/dark-matter-day-2024/
CATEGORIES:Astronomie,Fysica,kennis
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241111T231500
DTEND;TZID=Europe/Amsterdam:20241111T234500
DTSTAMP:20260601T014226
CREATED:20241111T082341Z
LAST-MODIFIED:20250414T153734Z
UID:117795-1731366900-1731368700@www.a3veen.nl
SUMMARY:The Sky at Night – Ancestral Skies (TV BBC Four)
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. \nBeginning 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:\nThis month\, The Sky at Night teams up with BBC Ideas to discover the secrets of archaeology and astronomy and to reflect on our ancestral skies. Throughout history and across the world\, humanity has looked up and marvelled at the night sky. From ancient civilizations who were guided by the sun\, moon and stars\, to modern astronomers uncovering the universe’s history\, we have always found deep meaning in our dark skies. But is modern civilisation putting this important link at risk? Out on Cornwall’s beautiful Bodmin Moor\, George Dransfield meets up with archaeoastronomer Carolyn Kennett at an ancient archaeological site. The Goodaver stone circle is steeped in history\, but it has been cut off from the public and researchers like Carolyn for decades. But times are changing. The site will open to the public in November\, and Carolyn and fellow archaeoastronomers are finally able to assess the stones against the horizon and understand how they are aligned to the sun\, moon and stars. \nWhat new stories about ancient peoples and their relationship to the night sky will be discovered? Chris Lintott and Maggie Aderin-Pocock are also finding out about archaeology in Cambridge – but not necessarily the archaeology you would expect. At the Whipple Museum of the History of Science\, Maggie links up with Australian space archaeologist Dr Alice Gorman to look at what we should be preserving of our history in space so far. From satellites to moon landing sites\, what will future generations want to see to help them understand our early history of our journey into space? Meanwhile\, Chris heads to the Department of Archaeology to find out about the surprising and fascinating field of Galactic Archaeology\, which takes inspiration from archaeology to try and solve the mystery of our galaxy’s history – using only what we can see today. \nChris meets anthropologist and evolutionary biologist Professor Robert Foley and astrophysicist Dr Payel Das\, who are part of a team that has been using phylogenetic trees – models normally used for evolution – for modelling the evolution of galaxies. Each generation of stars within a galaxy forms from material polluted with elements produced by previous generations\, opening up the possibility of understanding their shared history. Finally\, Pete Lawrence is at the Exmoor Dark Skies Festival\, where he is meeting Jo Richardson. While Pete waits for night to fall\, he talks to Jo about the importance of maintaining our view of the night sky and how modern lighting is affecting the health and well-being of humans and other animals. But will the clouds clear and provide the spectacular view dark skies sites can offer? Don’t miss this captivating exploration of our shared history and the stars\, as we discover where archaeology and astronomy meet to illuminate the profound connections that shape our understanding of both the universe and ourselves! \nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-ancestral-skies-tv-bbc-four/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241116T200000
DTEND;TZID=Europe/Amsterdam:20241116T213000
DTSTAMP:20260601T014226
CREATED:20241112T190559Z
LAST-MODIFIED:20241113T191838Z
UID:116613-1731787200-1731792600@www.a3veen.nl
SUMMARY:Webb's Universe: Our cosmic history (TV RIGB live stream)
DESCRIPTION:BBC’s The Sky at Night presenter Dame Maggie Aderin-Pocock shares her expertise and unique insights into the marvellous world of stars. \nDespite the huge advances in space technology in recent decades\, much of the universe remains a source of mystery\, often provoking more questions than answers. But technology exploring the cosmos continues to progress\, from the Hubble telescope first launched in 1990\, to the James Webb Space Telescope (JWST) in December 2021. Maggie Aderin-Pocock was one of the British space scientists to work on JWST\, and will break down the latest and greatest science to come out of the world’s most powerful space telescope. Now over two years since the first stunningly clear images of the depths of our Universe captured by JWST were released\, Maggie will demystify the latest images to be produced by James Webb’s groundbreaking infrared technology. \nLinks:\nWebb’s Universe: Our cosmic history \nGet tickets live stream
URL:https://www.a3veen.nl/event/webbs-universe-our-cosmic-history-tv-rigb-live-stream/
LOCATION:The Royal Institution of Great Britain\, 21 Albemarle Street\, London\, Verenigd Koninkrijk
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241117T080000
DTEND;TZID=Europe/Amsterdam:20241117T170000
DTSTAMP:20260601T014226
CREATED:20241114T165247Z
LAST-MODIFIED:20241115T165607Z
UID:116741-1731830400-1731862800@www.a3veen.nl
SUMMARY:Meteorenzwerm Leoniden in november 2024
DESCRIPTION:De meteorenzwerm Leoniden bereikt op zondag 17 november 2024\, rond 8 uur\, zijn maximum. \nDe meteoren van de Leoniden zijn snel\, en de zwerm is bekend vanwege zijn regens in 1799\, 1833\, 1866\, 1966 en 1999. Wanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld zo’n 13 meteoren per uur vallen. De radiant van de zwerm staat rond 7:00 uur in het hoogste punt aan de hemel\, op 60° boven de horizon. Door de matige omstandigheden zijn er bij ons dan ieder uur vermoedelijk slechts ongeveer 2 meteoren zichtbaar van deze zwerm. Samen met meteoren van andere zwermen\, en sporadische meteoren\, zijn er bij donkere\, heldere hemel in totaal circa 4–8 “vallende sterren” per uur te zien. De Maan is voor ongeveer 95% verlicht en is een flinke stoorzender; dit jaar zijn hierdoor alleen de helderste meteoren zichtbaar. Rond 7:30 uur gaat het schemeren en om 8:04 uur komt de Zon op. \nLinks:\nMeteorenzwerm Leoniden in november 2024
URL:https://www.a3veen.nl/event/meteorenzwerm-leoniden-in-november-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241121T200000
DTEND;TZID=Europe/Amsterdam:20241121T210000
DTSTAMP:20260601T014226
CREATED:20241121T162342Z
LAST-MODIFIED:20241219T101937Z
UID:117013-1732219200-1732222800@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte – Wie Galaxien das Modell der Dunklen Materie herausfordern / Intermediate mass black holes - the missing piece (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. \nWie passen kosmologische Modelle und Beobachtungen wirklich zusammen? Dieser Vortrag beleuchtet die Entdeckungsgeschichte von Zwerggalaxien\, ihre Rolle im Universum und die Schwierigkeiten\, die Dunkle Materie vorherzusagen. Spannend auch: Wie Simulationen helfen – oder vielleicht in die Irre führen. \nWhy are intermediate-mass black holes so important for astrophysics? Nikolay Kacharov from the Leibniz Institute for Astrophysics in Potsdam presents the first solid evidence of such a black hole. He explains their potential role in the formation of supermassive black holes and provides insights into the groundbreaking observations that led to this discovery. \nLink:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-wie-galaxien-das-modell-der-dunklen-materie-herausfordern-intermediate-mass-black-holes-the-missing-piece-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241125
DTEND;VALUE=DATE:20241126
DTSTAMP:20260601T014226
CREATED:20241125T165227Z
LAST-MODIFIED:20241127T170212Z
UID:117216-1732492800-1732579199@www.a3veen.nl
SUMMARY:High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S. - publication
DESCRIPTION:Scientists from the CNRS\, a consortium of German universities\, and the Max-Planck-Institut für Kernphysik working at the High Energy Stereoscopic System (H.E.S.S.) observatory have recently identified electrons and positrons with the highest energies ever recorded on Earth. \nThey provide evidence of cosmic processes emitting colossal amounts of energy\, the origins of which are as yet unknown. These findings are published on 25 November 2024 in the journal Physical Review Letters. \nLinks:\nH.E.S.S. collaboration detects the most energetic cosmic-ray electrons and positrons ever observed
URL:https://www.a3veen.nl/event/high-statistics-measurement-of-the-cosmic-ray-electron-spectrum-with-h-e-s-s-publication/
CATEGORIES:Astronomie,kennis
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241125
DTEND;VALUE=DATE:20241126
DTSTAMP:20260601T014226
CREATED:20241125T191540Z
LAST-MODIFIED:20241129T204559Z
UID:117345-1732492800-1732579199@www.a3veen.nl
SUMMARY:Phase separation of planetary ices explains nondipolar magnetic fields of Uranus and Neptune - publication
DESCRIPTION:Models using Voyager 2 data from the 1980s show that separate layers in the mantles of the planets Uranus and Neptune could be creating disordered magnetic fields. \nIn 1986 and 1989\, Voyager 2 made the final two stops on its grand tour of the outer solar system when it swept by Uranus and Neptune\, respectively. Now\, nearly 40 years later\, the archive of data the craft collected is still returning unexpected results. In the paper ‘Phase separation of planetary ices explains nondipolar magnetic fields of Uranus and Neptune‘\, astronomer Burkhard Militzer of the University of California\, Berkeley wanted to explore why Voyager 2 data show something unexpected: The magnetic fields of both planets\, which are not that far apart in mass\, are not dipolar. Earth\, Jupiter\, and Saturn all have dipolar magnetic fields\, meaning they have a north and south pole — the type of configuration we’re obviously used to. But Uranus and Neptune don’t. Instead\, their magnetic fields are more of a jumbled maze than an ordered set of lines. \nLinks:\nUranus and Neptune have weird magnetic fields — this might be why \nWhat lies beneath the bland surfaces of Uranus and Neptune?
URL:https://www.a3veen.nl/event/phase-separation-of-planetary-ices-explains-nondipolar-magnetic-fields-of-uranus-and-neptune-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241128
DTEND;VALUE=DATE:20241129
DTSTAMP:20260601T014226
CREATED:20241128T085015Z
LAST-MODIFIED:20241128T112537Z
UID:117222-1732752000-1732838399@www.a3veen.nl
SUMMARY:#RedPlanetDay 2024
DESCRIPTION:Red Planet Day commemorates the launch of the Mariner 4 spacecraft on November 28\, 1964 which was the first craft to ever reach Mars. \nSince the late 20th century\, Mars has been explored by uncrewed spacecraft and rovers\, with the first flyby by the Mariner 4 probe in 1965\, the first Mars orbiter by the Mars 2 probe in 1971\, and the first landing by Viking 1 in 1976. As of 2023\, there are at least 11 active probes orbiting Mars or at the Martian surface. Mars is an attractive target for human missions. Mars is the fourth planet and the furthest terrestrial planet from the Sun. The reddish color of its surface is due to finely grained iron(III) oxide dust in the soil\, giving it the nickname “the Red Planet”. Mars’s radius is second smallest among the planets in the Solar System at 3\,389.5 km (2\,106 mi). The Martian dichotomy is visible on the surface: on average\, the terrain on Mars’s northern hemisphere is flatter and lower than its southern hemisphere. Mars has a thin atmosphere made primarily of carbon dioxide\, and two irregularly shaped natural satellites\, Phobos and Deimos. Geologically\, Mars is fairly active\, with dust devils sweeping across the landscape and marsquakes (Martian analog to earthquakes) trembling underneath the ground. The surface of Mars hosts a large shield volcano (Olympus Mons) and one of the largest canyons in the Solar System (Valles Marineris). \nMars’s significant orbital eccentricity and axial tilt cause large seasonal changes to the polar ice caps‘ coverage and temperature swings between 163K / −110 °C to 308K / 35 °C on the surface. A Martian solar day (sol) is equal to 24.5 hours and a Martian solar year is equal to 1.88 Earth years. Like the other planets in the Solar System\, Mars was formed approximately 4.5 billion years ago. During the Noachian period from about 4.1 to 3.7 billion years ago\, Mars’s surface was marked by meteor impacts\, valley formation\, erosion\, and the possible presence of water oceans. The Hesperian period from 3.7 to 3.2–2 billion years ago was dominated by widespread volcanic activity and flooding that carved immense outflow channels. The Amazonian period\, which continues to the present\, was marked by the wind’s influence on geological processes. It is unknown whether life has ever existed on Mars. Mars is among the brightest objects in Earth’s sky\, and thus has been known from ancient times. Its high-contrast albedo features make it a common subject for viewing with a telescope. \nLinks:\nRed Planet Day: A Celebration of Mars and Its Mysteries \n(Exo)Planeet : Mars
URL:https://www.a3veen.nl/event/redplanetday-2024/
CATEGORIES:Astronomie,Mars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241203T200000
DTEND;TZID=Europe/Amsterdam:20241203T210000
DTSTAMP:20260601T014226
CREATED:20241203T102016Z
LAST-MODIFIED:20241219T103142Z
UID:118216-1733256000-1733259600@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte – Rotationskurven\, Dunkle Materie und MOND | Dr. Marcel Pawlowski (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.Link:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-rotationskurven-dunkle-materie-und-mond-dr-marcel-pawlowski-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241210
DTEND;VALUE=DATE:20241211
DTSTAMP:20260601T014226
CREATED:20241210T073643Z
LAST-MODIFIED:20241211T104849Z
UID:117871-1733788800-1733875199@www.a3veen.nl
SUMMARY:Dwingeloo ontvangt signalen van Voyager 1 - publicatie
DESCRIPTION:CAMRAS heeft met de historische Dwingeloo telescoop signalen van de ruimtesonde Voyager 1 ontvangen. \nEr zijn maar weinig telescopen die dit signaal hebben ontvangen. Het signaal is erg zwak vanwege de afstand van Voyager 1: bijna 25 miljard kilometer\, meer dan vier keer zo ver als Pluto. Voyager 1 is in 1977 gelanceerd om de buitenste planeten van het zonnestelsel te bezoeken. Na het einde van de primaire missie is Voyager 1 uit het zonnestelsel gestuurd. Het is momenteel het verste en snelste door mensen gemaakte object\, onderweg in de insterstellaire ruimte. Zijn radiosignalen\, die met de snelheid van het licht reizen\, doen er momenteel 23 uur over om aarde te bereiken. Aangezien de Dwingeloo telescoop voor lagere frequenties is ontworpen dan de 8.4GHz van de Voyager 1-telemetrie\, moest er een nieuwe feed in de focus geplaatst worden. Op deze hogere frequenties is het gaas minder reflecterend\, wat het extra uitdagend maakt om zwakke signalen te ontvangen. In oktober van dit jaar schakelde Voyager 1 één van zijn twee zenders uit. Het team van NASA JPL is erin geslaagd om de juiste zender weer in te schakelen\, die nu weer goed werkt. Om het zwakke signaal in de ruis te vinden\, hebben we baangegevens van Voyager 1 gebruikt om te corrigeren voor de Doppler-verschuiving in frequentie veroorzaakt door de beweging van aarde en Voyager 1. Hierdoor konden we het signaal live vanuit de waarneemruimte zien. Analyse van de opgenomen signalen bevestigde ook dat de Dopplerverschuiving overeenkwam met die van Voyager 1. NASA gebruikt zelf schotels van het Deep Space Network (DSN) om te communiceren met Voyager 1. Deze schotels\, verspreid over de aarde in Goldstone\, Canberra en Madrid\, zijn geoptimaliseerd voor deze hogere frequenties en hebben een diameter van 70 meter\, flink groter dan de 25 meter Dwingeloo telescoop. \nLinks:\nDwingeloo ontvangt signalen van Voyager 1 \nRadiotelescoop in Dwingeloo pikt signaal op van Voyager 1: ‘Menselijk object dat verst weg van ons is’
URL:https://www.a3veen.nl/event/dwingeloo-ontvangt-signalen-van-voyager-1-publicatie/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20241210T200000
DTEND;TZID=Europe/Amsterdam:20241210T210000
DTSTAMP:20260601T014226
CREATED:20241210T102336Z
LAST-MODIFIED:20241219T103030Z
UID:118218-1733860800-1733864400@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte – XMM-Newton Anniversary: Science at AIP with the X-ray telescope | Dr. Iris Traulsen\, 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.\nLink:\nBabelsberger Sternennächte \nBabelsberger Sternennächte – playlist
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-xmm-newton-anniversary-science-at-aip-with-the-x-ray-telescope-dr-iris-traulsen-dr-axel-schwope-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
END:VCALENDAR