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DTSTART;VALUE=DATE:19770820
DTEND;VALUE=DATE:20310101
DTSTAMP:20260518T173206
CREATED:20230721T083608Z
LAST-MODIFIED:20251030T204738Z
UID:92340-240883200-1924991999@www.a3veen.nl
SUMMARY:Voyagerprogramma
DESCRIPTION:Het Voyagerprogramma is een Amerikaans ruimtevaartprogramma van twee onbemande ruimtevaartschepen. \nIn 1961 werkte de toen 25-jarige wiskundestudent Michael Minovitch als vakantiewerker bij het Jet Propulsion Laboratory. Hij berekende dat het zwaartekrachtveld van een planeet niet het eind van een missie betekent\, maar een ruimtetuig kon versnellen. Versnellen in het zonnestelsel betekent verder van de zon af en dat betekende dat missies naar de buitenste planeten mogelijk waren door het enorme zwaartekrachtveld van Jupiter te gebruiken. In 1965 ontdekte Gary Flandro dat Jupiter\, Saturnus\, Uranus en Neptunus eens in de 176 jaar zo aan de hemel stonden dat het met één missie mogelijk was alle vier de planeten te bezoeken. De eerstvolgende keer dat deze planeetstand zou voorkomen was in 1977. Men begreep onmiddellijk dat deze kans niet gemist kon worden en ging aan de slag. De Pioneer 10-missie testte of het mogelijk was voorbij Jupiter te geraken\, de Pioneer 11 testte of het mogelijk was voorbij Saturnus te geraken. Vervolgens werden twee ruimtesondes die gebouwd waren voor het Marinerprogramma omgedoopt tot Voyager 1 en Voyager 2. Voor het communiceren met de Voyager-sondes was niet voldoende infrastructuur aanwezig. Dit leidde tot de bouw van het Deep Space Network\, bestaande uit schotelparken in Goldstone in Californië\, Madrid en Canberra in Australië. De locaties zijn zorgvuldig gekozen opdat altijd een van de stations de Voyager-sondes in ontvangst kon hebben. Het was de bedoeling meerdere ruimtetuigen met het Deep Space Network te bedienen dus werden op de locaties 34-meter- en 70-meterradiotelescopen neergezet\, waarbij de 34-metertelescopen voornamelijk dienen voor communicatie tot aan Jupiter en de 70-metertelescopen gebruikt worden voor communicatie met verder weg gelegen sondes. Vandaag de dag is het Deep Space Network sterk uitgebreid. \nNaarmate de lanceerdatum dichterbij kwam werd NASA flink gekort in haar budgetten. Aldus werd de missie flink ingekort. Van de oorspronkelijke vier trajecten die men met een Voyager-sonde wilde verkennen\, werden er twee geschrapt. Van de twee overgebleven trajecten ging er een langs de maan Titan\, wat betekende dat de Voyager 1-sonde na Titan uit het planetaire vlak zou worden geduwd en de missie ten einde zou brengen. Ook de Voyager-2-missie zou na Saturnus ten einde zijn; echter er werd een traject gekozen dat een reis naar Uranus en Neptunus mogelijk zou maken\, mocht het tij keren. Op 20 augustus 1977 de Voyager 2 gelanceerd\, kort daarop gevolgd door de Voyager 1 op 5 september 1977. De Voyagers hadden een voor die tijd geavanceerde fotocamera aan boord en stuurden foto’s terug naar de aarde. Toen Saturnus bereikt zou worden trokken grote mensenmassa’s naar het Jet Propulsion Laboratory om als eerste de foto’s van Saturnus te kunnen zien. Omdat zowel publiek als wetenschappers bijzonder enthousiast en vooral ook verrast waren over de foto’s die teruggestuurd werden\, werd de toestemming om de Voyager 2 verder te laten vliegen uiteindelijk een formaliteit. De slinkende brandstofvoorraad en afnemende elektrische vermogen begon echter zijn weerslag te krijgen. Langzaam maar zeker moet NASA steeds meer wetenschappelijke instrumenten uitschakelen\, om stroom voor de hoofdsystemen te garanderen. NASA schatte in\, dat ze het radiocontact met de sondes ergens tussen 2020 en 2025 gaan verliezen. Of dit uiteindelijk gebeurt door gebrek aan brandstof of elektriciteit blijft ongewis. \n\nLinks:\nNASA Voyager \nNASA Voyager Twitter \nNASA Voyager 2 spacecraft extends its interstellar science mission for 3 more years \nNASA Turns Off 2 Voyager-2 Science Instruments to Extend Mission
URL:https://www.a3veen.nl/event/voyagerprogramma/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:19900101
DTEND;VALUE=DATE:20300102
DTSTAMP:20260518T173206
CREATED:20230721T085144Z
LAST-MODIFIED:20231211T103046Z
UID:92346-631152000-1893542399@www.a3veen.nl
SUMMARY:Discovery Program
DESCRIPTION:The Discovery Program is a series of Solar System exploration missions funded by the US National Aeronautics and Space Administration (NASA) through its Planetary Missions Program Office. \nEach mission has a cost cap\, at a lower level than a mission from NASA’s New Frontiers or Flagship Programs. As a result\, Discovery missions tend to be more focused on a specific scientific goal (rather than serving a general purpose). \n \nThe Discovery Program was founded in 1990 to implement then-NASA Administrator Daniel S. Goldin’s policy of “faster\, better\, cheaper” planetary science missions. Existing NASA programs had specified mission targets and objectives in advance\, then sought bidders to construct and operate them. In contrast\, Discovery missions are solicited through a call for proposals on any science topic\, and assessed through peer review. Selected missions are led by a scientist called the Principal Investigator (PI) and may include contributions from industry\, universities\, or government laboratories. The Discovery Program also includes Missions of Opportunity\, which fund US participation in spacecraft operated by other space agencies (e.g. by contributing a single scientific instrument). It can also be used to re-purpose an existing NASA spacecraft for a new mission. \nPsyche: \nLucy: \nLinks:\nDiscovery Program \nNASA Selects 2 Missions to Study ‘Lost Habitable’ World of Venus \nNasa has just rejected missions to moons of Jupiter and Neptune – here’s what we would have found out \nLucy Mission : launch \nNew wave of missions to reignite Venus exploration \nPsyche \nJourney to a Metal-Rich World: NASA’s Psyche Is Ready to Launch \nDigging Deeper to Find Life on Ocean Worlds
URL:https://www.a3veen.nl/event/discovery-program/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:19900424
DTEND;VALUE=DATE:20310102
DTSTAMP:20260518T173206
CREATED:19900424T121030Z
LAST-MODIFIED:20260326T124827Z
UID:119162-640915200-1925078399@www.a3veen.nl
SUMMARY:Ruimtetelescoop Hubble
DESCRIPTION:De ruimtetelescoop Hubble (Hubble Space Telescope\, HST) bestaat uit een aantal precisie-instrumenten voor astronomische waarnemingen. \nHij is genoemd naar de Amerikaanse astronoom Edwin Hubble en draait sinds de lancering door NASA en ESA op 24 april 1990 als een kunstmatige satelliet rond de aarde. De Hubble wordt gebruikt voor optische waarnemingen. De telescoop bezit ook een infraroodcamera. Het was de eerste telescoop van het Great Observatories-programma. Voor observaties in het röntgengolflengtegebied wordt nog gebruikgemaakt van het Chandra X-ray Observatory. De andere 2 telescopen functioneren niet meer. Door het ontbreken van een atmosfeer in de ruimte is een ongekend scherpe afbeelding van verre astronomische objecten mogelijk. Een van de bekendste foto’s die door de Hubble genomen zijn is van de Pilaren der Creatie in de Adelaarsnevel (M16). \nKlik op afbeelding voor origineel (203MB)\nLinks:\nHubble Space Telescope \nHubble Captures Giant Star on the Edge of Destruction \nHubble Space Telescope program : new science announcement – press conference \nStunning new panorama of Andromeda galaxy took 10 years to make \nNASA’s Hubble Space Telescope released this panoramic view of the neighboring Andromeda galaxy \nHubble Telescope – 35th Anniversary Observing Challenge \nCelebrating 35 years of the Hubble Space Telescope \nFotoalbum Hubble Space Telescope
URL:https://www.a3veen.nl/event/ruimtetelescoop-hubble/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:19960101
DTEND;VALUE=DATE:20330101
DTSTAMP:20260518T173206
CREATED:20230720T172351Z
LAST-MODIFIED:20231212T141534Z
UID:92299-820454400-1988150399@www.a3veen.nl
SUMMARY:Missions to the #Moon #Mars #Moon2Mars #JournyToMars
DESCRIPTION:Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System\, being only larger than Mercury. \nIn English\, Mars carries the name of the Roman god of war and is often referred to as the “Red Planet”. The latter refers to the effect of the iron oxide prevalent on Mars’ surface\, which gives it a reddish appearance distinctive among the astronomical bodies visible to the naked eye. Mars is a terrestrial planet with a thin atmosphere\, with surface features reminiscent of the impact craters of the Moon and the valleys\, deserts and polar ice caps of Earth. \nThe days and seasons are comparable to those of Earth\, because the rotational period as well as the tilt of the rotational axis relative to the ecliptic plane are similar. Mars is the site of Olympus Mons\, the largest volcano and highest known mountain on any planet in the Solar System and of Valles Marineris\, one of the largest canyons in the Solar System. The smooth Borealis basin in the northern hemisphere covers 40% of the planet and may be a giant impact feature. Mars has two moons\, Phobos and Deimos\, which are small and irregularly shaped. These may be captured asteroids\, similar to 5261 Eureka\, a Mars trojan. \nIn December 2017\, on the 45th anniversary of the last manned mission to the Lunar surface\, President Donald Trump approved Space Policy Directive-1 that includes a lunar mission on the pathway to Mars and beyond. The directive calls for NASA to “lead an innovative and sustainable program of exploration with commercial and international partners to enable human expansion across the solar system and to bring back to Earth new knowledge and opportunities.” With this direction NASA will put astronauts on the Moon in the next decade\, and lay the foundation for human exploration of Mars. \nLinks:\nMoon2Mars \nNASA’s Moon to Mars Plans – Youtube playlist \nNASA Mars Exploration Program \nDrie Marsmissies staan in de startblokken\n\nList of Missions to Mars \nSummer of Mars Webinar (TV YouTube webcast) \nArtemisprogramma / Artemis program \n30 days until NASA’s Perseverance Mars Rover touch down on Mars \nMars 2020 Perseverance Rover – landing (TV NASAtv) \nSeismic ripples reveal size of Mars’s core \nChinese verkenner maakt geslaagde landing op Mars\n\nAgenda 29-08-2022 – Artemis I : launch
URL:https://www.a3veen.nl/event/missions-to-mars-moon2mars-journytomars/
CATEGORIES:Astronomie,Maan,Mars
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:19961010
DTEND;VALUE=DATE:20300411
DTSTAMP:20260518T173206
CREATED:20231128T104118Z
LAST-MODIFIED:20241011T195314Z
UID:99366-844905600-1902095999@www.a3veen.nl
SUMMARY:Solar System Exploration program
DESCRIPTION:In late 2014\, the Solar System Exploration program was established alongside the Planetary Missions Program Office to “execute prioritized planetary science.” \nThe first mission of the program is DART\, an asteroid deflection test targeting 65803 Didymos that launched in 2021. Originally a component of AIDA\, DART‘s impact was intended to be observed by ESA’s AIM orbiter\, which would continue to study Didymos from orbit. However\, the ESA Council at ministerial level cancelled the AIM mission in favour of funding for the ExoMars 2020 rover\, citing budget concerns. Despite the cancellation of AIM\, NASA committed to their original plan\, opting to continue solely with DART. DART successfully impacted Dimorphos\, the moon of asteroid 65803 Didymos\, on 26 September 2022. Two Europa astrobiology missions are scheduled in the Solar System Exploration program. The Europa Clipper is scheduled to launch in October 2024 on a Spacex Falcon Heavy. The ESA JUICE mission to study Europa\, Ganymede\, and Callisto will utilize the NASA-built\, Solar System Exploration Program-funded Ultraviolet Spectrograph (UVS) and parts of the Particle Environment Package (PEP) and Radar for Icy Moons Exploration (RIME) instruments. \nMissions:\nLICIACube\, Deployed 2022\, Operational – impact technology demonstration on 65803 Didymos’s satellite.\nJUICE\, launched 2023\, Operational – astrobiology study of Europa\, Ganymede\, and Callisto.\nEuropa Clipper\, launching 2024\, future – subsurface ocean and habitability study of Europa. \nLinks:\nSolar System Exploration program \nPlanetary Missions Program Office \nNASA Planetary Missions Program \nJUpiter ICy moons Explorer \nMessage in a Bottle
URL:https://www.a3veen.nl/event/solar-system-exploration-program/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:19981120
DTEND;VALUE=DATE:20310201
DTSTAMP:20260518T173206
CREATED:20230721T090756Z
LAST-MODIFIED:20250131T134231Z
UID:92353-911520000-1927670399@www.a3veen.nl
SUMMARY:Internationaal ruimtestation / International Space Station (ISS)
DESCRIPTION:Het internationaal ruimtestation (afgekort ISS naar de Engelse naam International Space Station) is een ruimtestation dat in een baan om de Aarde draait en door verschillende landen wordt gebouwd\, bemenst en bekostigd. \nOp 20 november 1998 werd de eerste module gelanceerd en sinds 2 november 2000 is het station permanent bewoond. Gedurende de eerste twee decennia van de 21e eeuw is het station continu uitgebreid. In maart 2009 bevond het ruimtestation zich op een hoogte van ongeveer 355 km. Alle reeds geplaatste modules samen hebben een massa van 262\,2 ton en een inhoud van ongeveer 574 m³. De maximale maten zijn 52 m lang (van Zvezda tot Harmony/PMA-2)\, 92\,7 meter breed (van S6 tot P6) en 27\,4 m hoog. De zonnepanelen hebben een maximale spanwijdte van 73\,2 meter. De bemanning bestaat uit drie vaste bemanningsleden. Elke dag daalt het vaartuig ongeveer honderd meter\, waardoor continu moet worden gecorrigeerd. De gemiddelde snelheid bedraagt 27 744 km/h (7700 m/s). In ongeveer 91\,2 minuten draait het ISS om de Aarde (de baanlengte is ongeveer 42 000 km). Overdag is de temperatuur aan boord van de woon- en werkvertrekken 26\,9 °C. \nIn januari 2022 werd bekendgemaakt dat de regering Biden-Harris het doorgaan tot in 2031 van de activiteiten van het ruimtestation ISS zal blijven ondersteunen. Het ruimtestation zal dan uit zijn baan om de Aarde worden gehaald om het gecontroleerd neer te kunnen laten storten in de South Pacific Oceanic Uninhabited Area\, bij Point Nemo. Als belangrijkste reden wordt het tegengaan van de vorming van ruimteschroot genoemd. Op 30 april 2022 maakte Roskosmos bekend zich in 2024 terug te trekken uit het ISS. Ze verlengen hun aandeel niet naar aanleiding van de sancties tegen Rusland en een lijst Russische individuen die door westerse landen werden opgelegd na de invasie van Rusland in Oekraïne. Op 26 juli 2022 werd de terugtrekking per 2024 bevestigd door Borisov\, de nieuwe directeur van Roskosmos. \nAl enkele jaren van tevoren zal begonnen worden de hoogte door afremmen geleidelijk te verminderen in plaats van deze door boosts op peil te houden. Er plannen om het ISS in de resterende tijd te commercialiseren. NASA heeft het Amerikaanse deel van het ISS in 2019 opengesteld voor betalende ruimtetoeristen en commerciële ruimtevaarders. Daarvoor worden ook nieuwe commerciële modules toegevoegd\, zoals die van Axiom Space\, die tezijnertijd zelfstandig verder gaan. Commerciële klanten moeten zelf de reis naar het ISS organiseren. \nLinks:\nWebsite van het Amerikaanse ruimtelabaratorium \nISS op de website van NASA \nISS op de website van ESA \nISS rondleiding met Sunita Williams \nSpace Flight Destroys Your Red Blood Cells / Hemolysis contributes to anemia during long-duration space flight – publication \nThe Russia-Ukraine War Has Put Many Space Missions at Risk | Putin | World War 3 | NATO / Has Putin Doomed The International Space Station? \nInternational Space Station – afspeellijst \nStarlab Space Station \nInternationaal ruimtestation 25 jaar / International Space Station (ISS) 25 years \nWill the International Space Station’s 2031 death dive cause pollution problems?
URL:https://www.a3veen.nl/event/internationaal-ruimtestation-international-space-station-iss/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20060119
DTEND;VALUE=DATE:20370120
DTSTAMP:20260518T173206
CREATED:20230721T091201Z
LAST-MODIFIED:20251007T114315Z
UID:92355-1137628800-2116022399@www.a3veen.nl
SUMMARY:New Frontiers-programma / New Frontiers Program
DESCRIPTION:Het New Frontiers-programma is een serie onbemande ruimtemissies die ondernomen worden door de Amerikaanse ruimtevaartorganisatie NASA. \nDeze missies hebben als doel om verschillende planeten in het zonnestelsel te onderzoeken. Alleen de planeet Mars is hiervan uitgesloten\, hiervoor was het Mars Scout Program in het leven geroepen. Kosten technisch zitten de missies van dit programma tussen die van het goedkopere Discoveryprogramma en die van het duurste programma Flagship in. Er zijn onder het New Frontiers-programma drie Missies onderweg of zeker van uitvoering: \n\nNew Horizons: een ruimtesonde die op 19 januari 2006 gelanceerd werd om onderzoek te doen naar de dwergplaneet Pluto en de Kuipergordel. New Horizons vloog in de zomer van 2015 langs Pluto en nam een groot aantal foto’s dat in het jaar daarop naar de aarde werd verzonden. Op 1 januari 2019 werd een flyby van kuipergordelobject Arrokoth uitgevoerd.\nJuno-ruimtesonde: deze werd op vrijdag 5 augustus 2011 gelanceerd en doet sinds juli 2016 onderzoek naar de planeet Jupiter.\nOSIRIS-REx: een ruimtesonde waarvan de lancering 8 september 2016 plaatsvond. OSIRIS-REx heeft planetoïde (101955) Bennu bestudeerd en in 2020 regoliet van de planetoïde verzameld om naar de aarde brengen (sample return-missie). De terugkeermodule met regoliet zal in 2023 landen.\nDragonfly: Op 27 juni 2019 werd een missie naar Titan aangekondigd. Dragonfly is een autonoom vliegende nucleaire drone die in 2026 wordt gelanceerd om vanaf 2034 op Titan foto’s te maken en metingen te uit te voeren.\n\nVoor een vierde New Frontiers-missie waren er in 2013 een zestal missies of doelen voorgesteld: \n\nVenus In-Situ Explorer: deze wordt op z’n vroegst in 2022 gelanceerd en zal na een landing op de planeet Venus onderzoek doen naar de samenstelling van de bodem.\nOcean exploratie op de manen Titan en/of Enceladus.\nEen sondelanding en “sample return-missie” naar het Zuidpool-Aitken-bekken van de Maan..\nEen missie waarbij een sonde de atmosfeer van Saturnus binnengaat.\nEen ruimtesonde die de Trojanen van Jupiter bezoekt en onderzoekt.\nEen “sample return-missie” van de kern van een komeet.\n\nOSIRIS-REx: \nDe Origins\, Spectral Interpretation\, Resource Identification\, Security\, Regolith Explorer oftewel OSIRIS-REx is de derde ruimtesonde van NASA‘s New Frontiers-programma. Deze werd gelanceerd op 8 september 2016\, en heeft op 3 december 2018 een baan rond de planetoïde (101955) Bennu bereikt. Ze is na een periode van bijna twee jaar bestudering op 20 oktober 2020 om 22:13 UTC erop geland om er materiaal af te blazen en op te vangen en heeft dat op 24 september 2023 terug naar aarde gebracht. Met wetenschappelijk onderzoek van het buitenaards materiaal wil men meer te weten te komen van het ontstaan van ons zonnestelsel en van het leven op aarde. Na het loskoppelen van de terugkeermodule in de nabijheid van de Aarde zal de ruimtesonde verder gaan als OSIRIS-APEX en de planetoïde Apophis bezoeken. Deze nieuwe missie werd op 25 april 2022 bekendgemaakt. In 2029 zal Apophis vlak langs de Aarde scheren. Gedurende een periode van 18 maanden rond die passage zal de planetoïde en de invloed van de Aarde erop worden bestudeerd. \nLinks:\nNew Frontiers Program website \nOf Titan and Methane \nOSIRIS-REx mission – launch \nNASA’s OSIRIS-REx asteroid sample return capsule landing / To Bennu and Back: Journey’s End \nNew Horizons / NASA’s Science Mission Directorate in Washington decided that it was best to extend operations for New Horizons \nAgenda – Asteroid (101955) Bennu in the laboratory: Properties of the sample collected by OSIRIS-REx – publication \nNASA’s Juno Is Getting Ever Closer to Jupiter’s Moon Io
URL:https://www.a3veen.nl/event/new-frontiers-programma-new-frontiers-program/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20160314
DTEND;VALUE=DATE:20360327
DTSTAMP:20260518T173206
CREATED:20230919T132756Z
LAST-MODIFIED:20230919T133654Z
UID:95221-1457913600-2090188799@www.a3veen.nl
SUMMARY:ExoMars
DESCRIPTION:ExoMars (Exobiology on Mars) is an astrobiology programme of the European Space Agency (ESA) and the Russian space agency Roscosmos. \nThe goals of ExoMars are to search for signs of past life on Mars\, investigate how the Martian water and geochemical environment varies\, investigate atmospheric trace gases and their sources and by doing so demonstrate the technologies for a future Mars sample-return mission. The first part of the programme is a mission launched in 2016 that placed the Trace Gas Orbiter into Mars orbit and released the Schiaparelli EDM lander. The orbiter is operational but the lander crashed on the planet’s surface. The second part of the programme was planned to launch in July 2020\, when the Kazachok lander would have delivered the Rosalind Franklin rover on the surface\, supporting a science mission that was expected to last into 2022 or beyond. On 12 March 2020\, it was announced that the second mission was being delayed to 2022 as a result of problems with the parachutes\, which could not be resolved in time for the launch window. \nThe Trace Gas Orbiter (TGO) and a test stationary lander called Schiaparelli were launched on 14 March 2016. TGO entered Mars orbit on 19 October 2016 and proceeded to map the sources of methane (CH4) and other trace gases present in the Martian atmosphere that could be evidence for possible biological or geological activity. The TGO features four instruments and will also act as a communications relay satellite. The Schiaparelli experimental lander separated from TGO on 16 October and was maneuvered to land in Meridiani Planum\, but it crashed on the surface of Mars. The landing was designed to test new key technologies to safely deliver the subsequent rover mission. \nIn June 2023\, a Roscosmos lander named Kazachok (refers to “little Cossack” as well as a folk dance)\, was due to deliver the ESA Rosalind Franklin rover to the Martian surface. The rover would also include some Roscosmos built instruments. The second mission operations and communications would be led by ALTEC’s Rover Control Centre in Italy. The ExoMars 2022 mission was planned for launch during a twelve-day launch window starting on 20 September 2022\, and scheduled to land on Mars on 10 June 2023. It would have included a German-built cruise stage and Russian descent module. On 28 February 2022\, the ESA announced that\, as a result of sanctions related to the 2021–2022 Russo-Ukrainian crisis\, a 2022 launch is “very unlikely.” The next launch window will open in late 2024. \nLinks:\nExoMars \nExoMars Space Research Institute of Russian Academy of Science site \nThe ExoMars project at RussianSpaceWeb.com \nArrival at Mars (The New York Times; 16 October 2016) \nAnimated video of ExoMars
URL:https://www.a3veen.nl/event/exomars/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20191201
DTEND;VALUE=DATE:20291202
DTSTAMP:20260518T173206
CREATED:20230920T084453Z
LAST-MODIFIED:20260118T200653Z
UID:95255-1575158400-1890863999@www.a3veen.nl
SUMMARY:Solar cycle 25
DESCRIPTION:Solar cycle 25 is a solar cycle pattern of sunspot activity\, it began in December 2019\, with a smoothed minimum sunspot number of 1.8 and is expected to continue until about 2030. \nLinks:\n“Solar Cycle Prediction”. NASA Marshall Space Flight Center \n“Solar Cycle Progression”. NOAA Space Weather Prediction Center \n“Solar Cycle Prediction”. Solar Cycle Science \nNOAA / NWS Space Weather Prediction Center\n\nGEOS imager\n\nZon\n\nGiant solar eruption seen by Solar Orbiter / Gigantische Eruption auf der Sonne – Mindestens 3.5 Millionen Kilometer Ausdehnung\n\nMinor R1 radio blackout in progress (≥M1 – current: M1.58)\n\nModerate M2.3 flare from sunspot region 12964\n\nSolar Cycle 25: The Overachiever\n\nSolar cycle: What is it and why does it matter? \nGigantische Struktur auf der Sonne entstanden – Steht ein Sonnensturm bevor? \nParker Solar Probe \nZonnekijkdag \nSolar Cycle 25 Progression \nCoronal hole faces Earth \nSolar Cycle 25 – NASA \nSunspot Detectives – Zooniverse \nSolar maximum: What is it and when will it occur? \nNOAA Forecasts Severe Solar Storm; Media Availability Scheduled for Friday\, May 10 [2024] \nNASA\, NOAA Announce That the Sun Has Reached the Solar Maximum Period \nSolar Cycle 25 – NASA Science \nAgenda – Geomagnetic Storm G4 (Severe) \nX-class Flare Activity Observed – 18 January 2026
URL:https://www.a3veen.nl/event/solar-cycle-25/
CATEGORIES:Astronomie,Zon
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200210
DTEND;VALUE=DATE:20270211
DTSTAMP:20260518T173206
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:20260518T173206
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;TZID=Europe/Amsterdam:20230413T141500
DTEND;TZID=Europe/Amsterdam:20351213T170000
DTSTAMP:20260518T173206
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:20260518T173206
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:20260518T173206
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:20260518T173206
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:20260518T173206
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:20260518T173206
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:20260518T173206
CREATED:20240428T043612Z
LAST-MODIFIED:20241014T151635Z
UID:106946-1728907560-1918252740@www.a3veen.nl
SUMMARY:NASA’s Europa Clipper Mission
DESCRIPTION:Europa Clipper (previously known as Europa Multiple Flyby Mission) is a space probe in development by NASA. \nPlanned for launch aboard a Falcon Heavy in October 2024 (the 21-day launch window period opens on October 10\, 2024)\, the spacecraft is being developed to study the Galilean moon Europa through a series of flybys while in orbit around Jupiter\, it is the largest spacecraft NASA has ever developed for a planetary mission. This mission is a scheduled flight of the Planetary Science Division\, designated a Large Strategic Science Mission\, and funded under the Planetary Missions Program Office‘s Solar System Exploration program as its second flight. It is also supported by the new Ocean Worlds Exploration Program. Europa Clipper will perform follow-up studies to those made by the Galileo spacecraft during its eight years (1995 – 2003) in Jupiter orbit\, which indicated the existence of a subsurface ocean underneath Europa’s ice crust. Plans to send a spacecraft to Europa were initially conceived with projects such as Europa Orbiter and Jupiter Icy Moons Orbiter\, in which a spacecraft would be injected into orbit around Europa. However\, due to the adverse effects of radiation from Jupiter’s magnetosphere in Europa orbit\, it was decided that it would be safer to inject a spacecraft into an elliptical orbit around Jupiter and make 44 close flybys of the moon instead. The mission began as a joint investigation between the Jet Propulsion Laboratory (JPL) and the Applied Physics Laboratory (APL)\, and will be built with a scientific payload of nine instruments contributed by JPL\, APL\, Southwest Research Institute\, University of Texas at Austin\, Arizona State University and University of Colorado Boulder. The upcoming mission complements ESA‘s Jupiter Icy Moons Explorer launched in 2023\, which will fly-by Europa twice and Callisto multiple times before moving into orbit around Ganymede. The spacecraft will use gravity assists from Mars in February 2025 and Earth in December 2026\, before arriving at Europa in April 2030. NASA will provide live coverage of prelaunch and launch activities for Europa Clipper\, the agency’s mission to explore Jupiter’s icy moon Europa. NASA now is targeting launch no earlier than 18:06 CEST\, Monday\, Oct. 14\, on a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. \nLinks:\nNASA’s Europa Clipper Mission \nEuropa Clipper \nThe search for life on Jupiter’s moon Europa – the Europa Clipper Mission \n8 Things to Know About NASA’s Mission to an Ocean Moon of Jupiter \nNASA\, SpaceX Secure Europa Clipper Ahead of Hurricane (Milton)
URL:https://www.a3veen.nl/event/nasas-europa-clipper-mission/
CATEGORIES:Astronomie,Jupiter
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250110
DTEND;VALUE=DATE:20270101
DTSTAMP:20260518T173206
CREATED:20250124T135940Z
LAST-MODIFIED:20250324T142655Z
UID:122257-1736467200-1798761599@www.a3veen.nl
SUMMARY:Save the Observatory Science Centre Herstmonceux - petition
DESCRIPTION:The Observatory Science Centre is an educational charity which has called the Grade II listed\, former home of the Royal Greenwich Observatory at Herstmonceux\, East Sussex\, home for the last 30 years. \nThe Canadian landlords\, Queen’s University\, who also own Herstmonceux Castle\, are not renewing the Science Centre’s lease\, so come the end of the 2026 season the Science Centre will be homeless. Over the years the science centre have worked tirelessly to fund and restore the site and the telescopes back to their former glory. The centre is a major venue for exhibitions\, lectures and educational programmes. The renovated telescopes provide a unique setting for the general public\, schools\, colleges\, and brownie and scout groups to learn about science\, space and the world around them. Whilst the Science Centre is in search for a new site to continue operations beyond 2026\, they should not have to leave the Observatory site at all and the historic site should be preserved for future generations as a great educational tool of significant historical importance. Please sign this petition for someone to step in and prevent the Science Centre from having to leave the Observatory site. \nLinks:\nSave the Observatory Science Centre Herstmonceux \nHerstmonceux Observatory Campaign Group
URL:https://www.a3veen.nl/event/save-the-observatory-science-centre-herstmonceux-petition/
CATEGORIES:Astronomie,Cultuur
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250429
DTEND;VALUE=DATE:20300430
DTSTAMP:20260518T173206
CREATED:20250410T010724Z
LAST-MODIFIED:20250410T111116Z
UID:123054-1745884800-1903737599@www.a3veen.nl
SUMMARY:Biomass : ESA's forest mission
DESCRIPTION:Biomass is an Earth observing satellite planned for launch by the European Space Agency (ESA) on 29 April 2025 from Kourou\, French Guiana on a Vega C launch vehicle\, the mission will provide the first comprehensive measurements of global forest biomass. \nIt is meant to last for five years\, monitoring at least eight growth cycles in the world’s forests. The Biomass satellite is part of ESA’s Living Planet Programme\, which consists of Earth observation missions. Its initial launch date was set to 2020\, but that has since been delayed to 2025. The entire cost of the mission was placed at around 400 million euros. The main scientific instrument aboard Biomass will be a synthetic aperture radar (SAR) operating at 435 MHz. The satellite will measure 10 x 12 x 20m\, weigh around 1.2 tonnes and it is set to orbit the Earth at an altitude of 666 km. All devices for assembly of the satellite structure\, including vertical transport equipment\, assembly and disassembly of satellite panels\, assembly and disassembly of the Synthetic Aperture Radar are done by the Spanish company SENER. \nLinks:\nBiomass – ESA \n#ForestDay #IntlForestDay Day of Forests / Dag van het Bos 2025 (TV FAO webcast)
URL:https://www.a3veen.nl/event/biomass-esas-forest-mission/
CATEGORIES:Astronomie,Biologie,Bossen,kennis,Natuur
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250601
DTEND;VALUE=DATE:20500701
DTSTAMP:20260518T173206
CREATED:20250212T044128Z
LAST-MODIFIED:20260416T132733Z
UID:120180-1748736000-2540246399@www.a3veen.nl
SUMMARY:Vera C. Rubin Observatory
DESCRIPTION:The Vera C. Rubin Observatory\, formerly known as the Large Synoptic Survey Telescope (LSST)\, is an astronomical observatory in Chile\, its main task will be carrying out a synoptic astronomical survey\, the Legacy Survey of Space and Time. \nThe word “synoptic” is derived from the Greek words σύν (syn ’together’) and ὄψις (opsis ‘view’)\, and describes observations that give a broad view of a subject at a particular time. The observatory is located on the El Peñón peak of Cerro Pachón\, a 2\,682-meter-high mountain in Coquimbo Region\, in northern Chile\, alongside the existing Gemini South and Southern Astrophysical Research Telescopes. The LSST Base Facility is located about 100 kilometres away from the observatory by road\, in the city of La Serena. The observatory is named for Vera Rubin\, an American astronomer who pioneered discoveries about galactic rotation rates. The Rubin Observatory will house the Simonyi Survey Telescope\, a wide-field reflecting telescope with an 8.4-meter primary mirror that will photograph the entire available sky every few nights. The telescope uses a novel three-mirror design\, a variant of three-mirror anastigmat\, which allows a compact telescope to deliver sharp images over a very wide 3.5-degree-diameter field of view. Images will be recorded by a 3.2-gigapixel charge-coupled device imaging (CCD) camera\, the largest digital camera ever constructed. \nThe LSST was proposed in 2001\, and construction of the mirror began (with private funds) in 2007. LSST then became the top-ranked large ground-based project in the 2010 Astrophysics Decadal Survey\, and the project officially began construction on 1 August 2014\, when the United States National Science Foundation (NSF) authorized the FY2014 portion ($27.5 million) of its construction budget. Funding comes from the NSF\, the United States Department of Energy\, and private funding raised by the dedicated international non-profit organization\, the LSST Discovery Alliance. Operations are under the management of the Association of Universities for Research in Astronomy (AURA). The total construction cost is expected to be about $680 million. Site construction began on 14 April 2015 with the ceremonial laying of the first stone. The first on-sky observations with the engineering camera occurred on 24 October 2024\, while system first light images were released 23 June 2025. Full survey operations are planned to begin later in 2025\, due to COVID-related schedule delays. Rubin Observatory data is scheduled to become fully public after two years. \nLinks:\nVera C. Rubin Observatory \nThe Rewriting of a Pioneering Female Astronomer’s Legacy Shows How Far Trump’s DEI Purge Will Go \nFirst celestial image unveiled from revolutionary telescope \nEarly Data from NSF–DOE Vera C. Rubin Observatory Reveals Over 11\,000 New Asteroids
URL:https://www.a3veen.nl/event/vera-c-rubin-observatory-expected-opening/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20251109T204500
DTEND;TZID=Europe/Amsterdam:20280509T000000
DTSTAMP:20260518T173206
CREATED:20251109T141249Z
LAST-MODIFIED:20251113T204734Z
UID:133068-1762721100-1841443200@www.a3veen.nl
SUMMARY:ESCAPADE mission to Mars
DESCRIPTION:Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) is a planned spacecraft mission to Mars consisting of two spacecraft known as Blue and Gold\, the mission is led by UC Berkeley’s Space Sciences Laboratory. \nOnce expected to launch in October 2024\, it is part of NASA‘s SIMPLEx program. In August 2024 the spacecraft arrived at the launch site. However\, NASA postponed the launch due to schedule and technical issues involved with the mission’s New Glenn launch vehicle\, which was set to debut with the launch of these spacecraft. Launch on the New Glenn is now planned for no earlier than November 9\, 2025. The science goals of ESCAPADE are to: \n\nunderstand the processes controlling the structure of Mars’ hybrid magnetosphere and how it guides ion flows\nunderstand how energy and momentum are transported from the solar wind through Mars’ magnetosphere\nunderstand the processes controlling the flow of energy and matter into and out of the collisional atmosphere\n\nThere are three science experiments onboard each identical spacecraft: EMAG\, EESA\, and ELP. EMAG\, which was developed by the NASA Goddard Spaceflight Center\, is a magnetometer that will measure DC magnetic fields up to 1000 nT\, mounted at the end of the boom to reduce magnetic noise from the spacecraft. EESA is an electrostatic analyzer designed to measure the energies\, fluxes\, and masses of suprathermal ions from 2 eV to 20 keV and energies and fluxes of suprathermal electrons from 3 eV to 10 keV. It is mounted on the upper deck of the spacecraft bus\, with a 240° x 120° field of view for electrons and 247.5° x 90° field of view for ions. ELP\, developed by the Space and Atmospheric Instrumentation Lab at Embry-Riddle Aeronautical University\, is a Langmuir probe consisting of three separate sensors: the multi-needle Langmuir probe (mNLP) consists of 4 thin needles mounted in two pairs ~3/4 way up the boom and measures thermal electron density; the two planar ion probes (PIPs) are mounted on the instrument deck and measure thermal ion density\, and the floating potential probe (FPP) is also mounted on the spacecraft deck and measures changes in relative spacecraft electrostatic potential. Once the nominal science orbit is achieved\, approximately six months after arriving at Mars\, Science Campaign A involves both spacecraft flying in the same orbit at varying distances from one another\, ~170 × 8\,400 km (5.66 hours) with an inclination of 65 degrees. This will last approximately six months\, at which time Blue will lower its apoapsis to 7\,000 km and Gold will raise its apoapsis to 10\,000 km. With different orbital periods (4.9 and 6.6 hours)\, the orbits will precess (due to Mars’ nonuniform gravity field) at different rates and thus separate\, allowing simultaneous measurements of distant parts of the Mars magnetosphere. This campaign will operate for approximately five months until the end of the nominal science mission less than three years after launch. Launches on November 9 and 12\, 2025\, were scrubbed due to weather conditions and solar storms; the next launch attempt is scheduled for November 13\, 2025. The launch window opens at 19:57 UTC and runs through 21:25 UTC. \nLinks:\nESCAPADE \nVoor het eerst in jaren missie naar Mars\, vuurproef voor raket Jeff Bezos
URL:https://www.a3veen.nl/event/escapade-mission-to-mars/
CATEGORIES:Astronomie,Mars
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