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BEGIN:VEVENT
DTSTART;VALUE=DATE:20200210
DTEND;VALUE=DATE:20270211
DTSTAMP:20260601T035225
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:20260601T035225
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:20260601T035225
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:20260601T035225
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:20260601T035225
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:20260601T035225
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:20260601T035225
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;VALUE=DATE:20240104
DTEND;VALUE=DATE:20240913
DTSTAMP:20260601T035225
CREATED:20240915T123934Z
LAST-MODIFIED:20240915T124451Z
UID:113213-1704326400-1726185599@www.a3veen.nl
SUMMARY:Astronomy Photographer of the Year competition 2024
DESCRIPTION:The 2024 Overall Winner of the Astronomy Photographer of the Year competition is “Distorted Shadows of the Moon’s Surface Created by an Annular Eclipse” © Ryan Imperio (USA)\, click on picture to see original photo\nAstronomy Photographer of the Year is an annual astronomy photography competition and exhibition that is organised by the Royal Observatory\, Greenwich (part of Royal Museums Greenwich). \nThe competition was launched in 2009 during the International Year of Astronomy. It has expanded significantly since this time and since 2016 the overall winner receives a prize of £10\,000. In 2018 the exhibition moved to the Photography Gallery at the National Maritime Museum\, where the exhibition showed a 10-year retrospective of the competition’s 31 winning images alongside 69 of the best winning images from the past nine years. Since then\, each year’s winning images have been showcased alongside the shortlisted images in the annual exhibition. \nLinks:\nAstronomy Photographer of the Year \nAnd the Winner is…. Astronomy Photographers of the Year 2024 Announced
URL:https://www.a3veen.nl/event/astronomy-photographer-of-the-year-competition-2024/
CATEGORIES:Astronomie,Foto
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240201
DTEND;VALUE=DATE:20241001
DTSTAMP:20260601T035225
CREATED:20240322T020037Z
LAST-MODIFIED:20240322T120549Z
UID:104633-1706745600-1727740799@www.a3veen.nl
SUMMARY:T Coronae Borealis : Nova Explosion 2024
DESCRIPTION:Star system T Coronae Borealis (T CrB) located 3\,000 light-years away from Earth\, is predicted to\nbecome visible to the unaided eye soon. \nThis could be a once-in-a-lifetime viewing opportunity as the nova ouburst only occurs about every 80 years. T CrB\, last exploded in 1946 and astronomers believe it will do so again between February and September 2024. The star system\, normally magnitude +10\, which is far too dim to see with the unaided eye\, will jump to magnitude +2 during the event. This will be of similar brightness to the North Star\, Polaris. Once its brightness peaks\, it should be visible to the unaided eye for several days and just over a week with binoculars before it dims again\, possibly for another 80 years. As we wait for the nova\, become familiar with the constellation Corona Borealis\, or the Northern Crown — a small\, semicircular arc near Bootes and Hercules. This is where the outburst will appear as a “new” bright star. This recurring nova is only one of five in our galaxy. This happens because T CrB is a binary system with a white dwarf and red giant. The stars are close enough that as the red giant becomes unstable from its increasing temperature and pressure and begins ejecting its outer layers\, the white dwarf collects that matter onto its surface. The shallow dense atmosphere of the white dwarf eventually heats enough to cause a runaway thermonuclear reaction – which produces the nova we see from Earth. \nLinks:\nView Nova Explosion\, ‘New’ Star in Northern Crown
URL:https://www.a3veen.nl/event/t-coronae-borealis-nova-explosion-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240208T073300
DTEND;TZID=Europe/Amsterdam:20270208T170000
DTSTAMP:20260601T035225
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:20260601T035225
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;VALUE=DATE:20240506
DTEND;VALUE=DATE:20240507
DTSTAMP:20260601T035225
CREATED:20240506T071522Z
LAST-MODIFIED:20240506T111230Z
UID:107446-1714953600-1715039999@www.a3veen.nl
SUMMARY:Radio-astronomen omzeilen storende aardatmosfeer met nieuwe kalibratietechniek / Characterisation of the decameter sky at sub-arcminute resolution - publication / publicatie
DESCRIPTION:Oud (links) versus nieuw. (c) LOFAR/Groeneveld et al.\nEen internationaal team van onderzoekers\, onder leiding van Leidse sterrenkundigen\, heeft voor het eerst scherpe radiokaarten gemaakt van het heelal op lage frequenties. \nDankzij een nieuwe kalibratietechniek omzeilden ze de verstoringen van de aardse ionosfeer. Met de nieuwe methode bestudeerden ze plasma’s van oude uitbarstingen van zwarte gaten. Mogelijk is de techniek geschikt om exoplaneten vinden die om kleine sterren draaien. De onderzoekers publiceren hun techniek in Nature Astronomy. \nLinks:\nRadio-astronomen omzeilen storende aardatmosfeer met nieuwe kalibratietechniek
URL:https://www.a3veen.nl/event/radio-astronomen-omzeilen-storende-aardatmosfeer-met-nieuwe-kalibratietechniek-characterisation-of-the-decameter-sky-at-sub-arcminute-resolution-publication-publicatie/
CATEGORIES:Astronomie,Radiotechniek
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240506
DTEND;VALUE=DATE:20240507
DTSTAMP:20260601T035225
CREATED:20240506T115810Z
LAST-MODIFIED:20240520T115853Z
UID:108099-1714953600-1715039999@www.a3veen.nl
SUMMARY:NASA Simulation’s Plunge Into a Black Hole: Explained - publication
DESCRIPTION:Ever wonder what happens when you fall into a black hole? \nThanks to an immersive visualization produced on a NASA supercomputer\, viewers can plunge into the event horizon\, a black hole’s point of no return. The visualizations are available in multiple forms. Explainer videos act as sightseeing guides\, illuminating the bizarre effects of Einstein’s general theory of relativity. Versions rendered as 360-degree videos let viewers look all around during the trip\, while others play as flat all-sky maps. To create the visualizations\, Schnittman teamed up with fellow Goddard scientist Brian Powell and used the Discover supercomputer at the NASA Center for Climate Simulation. The project generated about 10 terabytes of data — equivalent to roughly half of the estimated text content in the Library of Congress — and took about 5 days running on just 0.3% of Discover’s 129\,000 processors. The same feat would take more than a decade on a typical laptop. The destination is a supermassive black hole with 4.3 million times the mass of our Sun\, equivalent to the monster located at the center of the Milky Way galaxy. \nLinks:\nNew NASA Black Hole Visualization Takes Viewers Beyond the Brink
URL:https://www.a3veen.nl/event/nasa-simulations-plunge-into-a-black-hole-explained-publication/
CATEGORIES:Astronomie,Zwart gat
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240506
DTEND;VALUE=DATE:20240507
DTSTAMP:20260601T035225
CREATED:20240506T140949Z
LAST-MODIFIED:20240605T194327Z
UID:108754-1714953600-1715039999@www.a3veen.nl
SUMMARY:Project Hephaistos – II. Dyson sphere candidates from Gaia DR3\, 2MASS\, and WISE - publication
DESCRIPTION:Astronomers find 60 Dyson sphere megastructure candidates among millions of searched stars. \nDyson spheres are gargantuan artificial structures\, built by extraterrestrial civilizations around around their stars\, with the goal of capturing energy. First proposed in 1960 by physicist Freeman Dyson\, they are an incredible thought experiment. Two teams of astronomers in Sweden and Italy recently conducted a new search for possible evidence of Dyson spheres. The astronomers examined 5 million stars\, up to 6\,500 light-years away and found 60 possible candidate stars. The stars\, both red dwarfs (or M dwarfs) and larger ones including sun-like stars\, are emitting up to 60 times more infrared heat than scientists expected. The results fit with what astronomers would expect to see from Dyson spheres. The teams found the candidates in the latest Gaia DR3 data from the European Gaia satellite as well as the Two Micron All Sky Survey (2MASS) and Wide-field Infrared Survey Explorer (WISE). The researchers said it is difficult to explain the observations with currently known natural processes. And even if the process is most likely a previously unknown natural phenomenon\, it’s still a fascinating discovery. \nLinks:\nAstronomers find 60 Dyson sphere candidates\, among millions of searched stars \nAlien ‘Dyson sphere’ megastructures could surround at least 7 stars in our galaxy\, new studies suggest \nBackground Contamination of the Project Hephaistos Dyson Spheres Candidates \nProject Hephaistos
URL:https://www.a3veen.nl/event/project-hephaistos-ii-dyson-sphere-candidates-from-gaia-dr3-2mass-and-wise-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240506T200000
DTEND;TZID=Europe/Amsterdam:20240506T213000
DTSTAMP:20260601T035225
CREATED:20240424T020325Z
LAST-MODIFIED:20240424T120539Z
UID:106747-1715025600-1715031000@www.a3veen.nl
SUMMARY:Hendrik de Waard Lecture : Our Universe Through the James Webb Space Telescope
DESCRIPTION:Where did we come from? What path leads us through the 13.8-billion-year history of the Universe\, connecting the particles and energy of the Big Bang to the formation of galaxies like the Milky Way\, stars like the Sun and planets like the Earth? \nThe James Webb Space Telescope\, built by NASA in partnership with the European and Canadian Space Agencies\, was designed to answer fundamental questions about the origins of galaxies\, stars and planets\, and to help us find our place in the Universe. Webb was launched on Christmas Day 2021 after 25 years of planning\, design\, development\, construction\, and testing. In this year’s Hendrik de Waard Lecture\, Jonathan P. Gardner will discuss why the first science results from Webb have engaged the public and surprised the scientists\, and which additional results can be expected in the years to come. \nLinks:\nHendrik de Waard Lecture : Our Universe Through the James Webb Space Telescope
URL:https://www.a3veen.nl/event/hendrik-de-waard-lecture-our-universe-through-the-james-webb-space-telescope/
LOCATION:RUG Academy Building Groningen\, Broerstraat 5\, Groningen\, Nederland
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240507
DTEND;VALUE=DATE:20240509
DTSTAMP:20260601T035225
CREATED:20240507T145604Z
LAST-MODIFIED:20240508T152047Z
UID:107550-1715040000-1715212799@www.a3veen.nl
SUMMARY:2024 #HumansToMars Summit
DESCRIPTION:H2M 2024 will focus on questions that include:\n\nDo we have a viable mission architecture plan for Mars?\nWhat are the most significant technological hurdles (or long poles) that need to be overcome before humanity steps on the surface of Mars?\nDo we have an adequate pipeline of skilled workers to build our future in space?\nHow can governments and commercial industry collaborate to enable a human presence on Mars?\nCan we send humans to Mars in 2033?\nHow can innovations from Mars-focused R&D drive value and improvement on Earth\, and how can stakeholders contribute?\nWhat are the major Mars science achievements over the past year – and what are our objectives before humans first step foot on the surface?\nHow can we most effectively protect the physical and mental health of astronauts voyaging to and from Mars?\n\n\nLinks:\nHumans to Mars Summit
URL:https://www.a3veen.nl/event/2024-humanstomars-summit/
LOCATION:Washington DC\, Washington DC\, Verenigde Staten
CATEGORIES:Astronomie,Mars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240507T100000
DTEND;TZID=Europe/Amsterdam:20240507T110000
DTSTAMP:20260601T035225
CREATED:20240503T070351Z
LAST-MODIFIED:20240507T124959Z
UID:107300-1715076000-1715079600@www.a3veen.nl
SUMMARY:Meteorenzwerm η-Aquariden in mei 2024
DESCRIPTION:De meteorenzwerm η-Aquariden bereikt op dinsdag 7 mei 2024\, rond 10:00\, zijn maximum. \nDe meteoren van de η-Aquariden zijn snel en hebben nalichtende sporen. Wanneer de radiant in het zenit zou staan\, zouden er van deze zwerm naar verwachting gemiddeld zo’n 30 meteoren per uur vallen. De radiant van de zwerm staat rond 09:00 in het hoogste punt aan de hemel\, op 37° boven de horizon. Het beste moment om η-Aquariden waar te nemen is op 8 mei rond 04:45. De radiant staat op dat moment zo’n 14° boven de oostzuidoostelijke horizon; niet erg gunstig. Er is dan bij ons ieder uur niet meer dan één meteoor zichtbaar van deze zwerm. Samen met meteoren van andere zwermen\, en sporadische meteoren\, zijn er bij donkere\, heldere hemel in totaal circa 3–8 meteoren per uur zichtbaar. De Maan komt om 05:43 op\, is voor ongeveer 0% verlicht en stoort niet. Rond 05:15 gaat het schemeren en om 05:56 komt de Zon op. \nLinks:\nMeteorenzwerm η-Aquariden in mei 2024 \nEta Aquarid meteor shower 2024: Where\, when and how to see it
URL:https://www.a3veen.nl/event/meteorenzwerm-%ce%b7-aquariden-in-mei-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240513T230000
DTEND;TZID=Europe/Amsterdam:20240513T233000
DTSTAMP:20260601T035225
CREATED:20240513T080014Z
LAST-MODIFIED:20240513T080638Z
UID:107694-1715641200-1715643000@www.a3veen.nl
SUMMARY:The Sky at Night - Hiding in Starlight (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. Beginning with the 3 February 2013 edition\, the show was co-presented by Lucie Green and Chris Lintott. Since December 2013 Maggie Aderin-Pocock has been a presenter. The programme’s opening and closing theme music is “At the Castle Gate”\, from the incidental music to Pelléas et Mélisande\, written in 1905 by Jean Sibelius\, performed by the Royal Philharmonic Orchestra and conducted by Sir Thomas Beecham. \nThis episode:\nTotal solar eclipses\, like the one seen last month in North America\, allow us to see details of the Sun that can’t be seen at any other time. So\, this month\, The Sky at Night team looks at how scientists are creating eclipses on demand and discovering the secrets that can be revealed hidden in that starlight\, including habitable planets like our own. Maggie Aderin-Pocock travels to Belgium\, where the European Space Agency’s Proba-3 mission is going through its final testing stages. This groundbreaking mission aims to fly two satellites together in formation\, with one satellite acting like the moon during an eclipse\, blocking out the central light of the Sun. This allows the other satellite to image the corona\, the Sun’s outer atmosphere as seen during an eclipse. Maggie meets Dr Damien Galano from ESA\, who tells her all about the challenges of the mission and what it hopes to achieve. Maggie then goes on to meet satellite operations test engineer Marie Beeckman\, who takes her up close to the satellites to find out how the testing is going. Meanwhile\, Pete Lawrence is out and about in Bristol\, meeting a team of scientists and amateur astronomers. He discovers how input from the amateurs was crucial to the discovery of two exoplanets colliding\, which had caused the dimming of a star. Finally\, Chris Lintott is in Glasgow meeting Professor Beth Biller from Edinburgh University to discover why it is only by creating eclipses of distant stars that we could potentially find exoplanets more like our own. And as ever\, our resident astronomer\, Pete Lawrence\, guides us through what can be seen this coming month\, with a particular focus on the rewards of viewing in daylight – but as always\, he reminds us of the need to take care when doing this.\n\nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-hiding-in-starlight-tv-bbc-four/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240516T190000
DTEND;TZID=Europe/Amsterdam:20240516T203000
DTSTAMP:20260601T035225
CREATED:20240516T084218Z
LAST-MODIFIED:20240516T093044Z
UID:107879-1715886000-1715891400@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte : A simple Recipe to make a Galaxy (TV webcast)
DESCRIPTION:Die 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 auf dem YouTube-Kanal von Urknall\, Weltall und das Leben ausgestrahlt wird (Playlist). \nGalaxien gibt es in verschiedenen Formen und Größen\, aber genau wie bei Kuchen oder Torten sind die Grundzutaten immer die gleichen. Die Wissenschaftlerin erklärt in ihrem Vortrag\, wie sich die Galaxien trotzdem unterscheiden\, welche Mechanismen die Entstehung und Entwicklung von Galaxien vorantreiben und ihre Struktur und ihr Aussehen beeinflussen. Sie geht dabei auch auf Wechselwirkungen der Galaxien miteinander ein und wie sich diese auf ihre Art und Größe auswirken. \nSobald der neue Vortrag verfügbar ist\, ist der Link direkt auf dieser Seite zu finden. Bitte beachten Sie\, dass fast alle Vorträge auf Deutsch gehalten werden. \nLink:\nBabelsberger Sternennächte \nVirtual lecture: Babelsberg Starry Night on 16 May 2024
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-tv-webcast-20240516/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240518
DTEND;VALUE=DATE:20240519
DTSTAMP:20260601T035225
CREATED:20240516T152816Z
LAST-MODIFIED:20240518T141525Z
UID:107911-1715990400-1716076799@www.a3veen.nl
SUMMARY:Astronomy Day Spring 2024
DESCRIPTION:Astronomy Day is an annual event in various countries\, intended to provide a means of interaction between the general public and various astronomy enthusiasts\, groups and professionals. \nThe lunar influence on the schedule means that the events happen on a different date each year\, rather than set calendar dates. This event was started in 1973 by Doug Berger\, the president of the Astronomical Association of Northern California. His intent was to set up various telescopes in busy urban locations so that passersby could enjoy views of the heavens. Since then the event has expanded and is now sponsored by a number of organizations associated with astronomy. In 2007\, an autumn Astronomy Day was added. It was scheduled to occur on a Saturday between mid-September and mid-October so as to be on or close to the first quarter Moon. \nLinks:\nAstronomy Day Spring 2024
URL:https://www.a3veen.nl/event/astronomy-day-may-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240522
DTEND;VALUE=DATE:20240523
DTSTAMP:20260601T035225
CREATED:20240523T050136Z
LAST-MODIFIED:20250510T175200Z
UID:108289-1716336000-1716422399@www.a3veen.nl
SUMMARY:Cost and Benefit Analysis of Mitigating\, Tracking and Remediating Orbital Debris - publication
DESCRIPTION:A report by NASA\, ‘Cost and Benefit Analysis of Mitigating\, Tracking and Remediating Orbital Debris‘\, compares the cost-effectiveness of more than 10 different strategies that could be used to reduce the risk of collisions between satellites and orbital debris. \nThe report outlines the most promising approaches to keeping the space around Earth safe and usable for future generations and finds that the solution could be more cost-effective than previously thought. From expensive actions such as dedicated space debris removal missions to better shielding of new satellites and improved tracking of the smallest space debris fragments\, there are many ways to protect the space environment from the potentially devastating effects of the growing amount of space junk orbiting Earth. The Kessler syndrome\, also known as the Kessler effect\, collisional cascading\, or ablation cascade\, is a scenario proposed by NASA scientists Donald J. Kessler and Burton G. Cour-Palais in 1978. It describes a situation in which the density of objects in low Earth orbit (LEO) becomes so high due to space pollution that collisions between these objects cascade\, exponentially increasing the amount of space debris over time. This proliferation of debris poses significant risks to satellites\, space missions\, and the International Space Station\, potentially rendering certain orbital regions unusable and threatening the sustainability of space activities for many generations. In 2009\, Kessler wrote that modeling results indicated the debris environment had already become unstable\, meaning that efforts to achieve a growth-free small debris environment by eliminating past debris sources would likely fail because fragments from future collisions would accumulate faster than atmospheric drag could remove them. The Kessler syndrome underscores the critical need for effective space traffic management and collision avoidance strategies to ensure the long-term viability of space exploration and utilization. \nLinks:\nSpace debris could be dealt with more cheaply than previously thought\, new NASA report suggests
URL:https://www.a3veen.nl/event/cost-and-benefit-analysis-of-mitigating-tracking-and-remediating-orbital-debris-publication/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240528T233000
DTEND;TZID=Europe/Amsterdam:20240529T020000
DTSTAMP:20260601T035225
CREATED:20240528T075955Z
LAST-MODIFIED:20241017T105933Z
UID:108532-1716939000-1716948000@www.a3veen.nl
SUMMARY:EarthCARE - launch (TV ESA WebTV / ESA YouTube)
DESCRIPTION:Op 29-05-2024 wordt satelliet EarthCARE gelanceerd. \nEarthCARE is uitgerust met geavanceerde instrumenten om onze atmosfeer op een nieuwe manier te observeren. Met vier sensoren zal EarthCARE belangrijke gegevens verzamelen over (de interactie tussen) wolken\, fijnstof\, zonnestraling en warmtestraling\, waardoor wetenschappers een beter begrip krijgen van klimaatverandering. Ook is nieuw dat deze satelliet de driedimensionale structuur van de atmosfeer kan meten. EarthCARE is onderdeel van ESA’s Earth Explorer research missions\, de wetenschappelijke leiding van EarthCARE is in handen van het KNMI. \nLinks:\nWatch EarthCARE launch live \nDoor satelliet EarthCARE meer begrip van klimaatverandering \nSuccesvolle lancering van klimaatsatelliet EarthCARE \nSatelliet EarthCARE doet eerste succesvolle stralingsmetingen \nSamenwerking tussen EarthCARE’s satelliet-instrumenten
URL:https://www.a3veen.nl/event/earthcare-launch-tv-esa-webtv-esa-youtube/
CATEGORIES:Astronomie,Klimaat,Weer
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240530
DTEND;VALUE=DATE:20240531
DTSTAMP:20260601T035225
CREATED:20240530T134548Z
LAST-MODIFIED:20240531T142913Z
UID:108749-1717027200-1717113599@www.a3veen.nl
SUMMARY:James Webb Space Telescope Finds Most Distant Known Galaxy
DESCRIPTION:Using the NASA/ESA/CSA James Webb Space Telescope (also called Webb or JWST)\, scientists have found a record-breaking galaxy\, JADES-GS-z14-0\, observed only 290 million years after the Big Bang. \nOver the last two years\, scientists have used NASA’s James Webb Space Telescope to explore what astronomers refer to as Cosmic Dawn – the period in the first few hundred million years after the big bang where the first galaxies were born. These galaxies provide vital insight into the ways in which the gas\, stars\, and black holes were changing when the universe was very young. In October 2023 and January 2024\, an international team of astronomers used Webb to observe galaxies as part of the JWST Advanced Deep Extragalactic Survey (JADES) program. Using Webb’s NIRSpec (Near-Infrared Spectrograph)\, they obtained a spectrum of a record-breaking galaxy observed only two hundred and ninety million years after the big bang. This corresponds to a redshift of about 14\, which is a measure of how much a galaxy’s light is stretched by the expansion of the universe. Based on data from Webb science in progress\, which has not yet been through the peer-review process. \nLinks:\nWebb finds most distant known galaxy \nWebb finds most distant known galaxy (JADES-GS-z14-0 annotated pullout NIRCam image) \nNASA’s James Webb Space Telescope Finds Most Distant Known Galaxy
URL:https://www.a3veen.nl/event/james-webb-space-telescope-finds-most-distant-known-galaxy/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240602
DTEND;VALUE=DATE:20240603
DTSTAMP:20260601T035225
CREATED:20240602T170320Z
LAST-MODIFIED:20240602T170320Z
UID:108806-1717286400-1717372799@www.a3veen.nl
SUMMARY:Meteorenzwerm ω-Scorpiiden in juni 2024
DESCRIPTION:Links:\nMeteorenzwerm ω-Scorpiiden in juni 2024
URL:https://www.a3veen.nl/event/meteorenzwerm-%cf%89-scorpiiden-in-juni-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240603T023000
DTEND;TZID=Europe/Amsterdam:20240603T053000
DTSTAMP:20260601T035225
CREATED:20240602T102439Z
LAST-MODIFIED:20240605T092535Z
UID:108823-1717381800-1717392600@www.a3veen.nl
SUMMARY:Planetenparade / Planetaire uitlijning 2024
DESCRIPTION:Planetenuitlijning\, klik op afbeelding voor infographic\nIn de vroege ochtend van 2 op 3 juni 2024 staan zes planeten – Mercurius\, Mars\, Jupiter\, Saturnus\, Uranus en Neptunus – in een bijna rechte lijn aan de lucht. \nZo’n planetenparade komt niet vaak voor en is dus best een bijzonder astronomisch fenomeen. Van de zes planeten zijn Mercurius\, Mars\, Jupiter en Saturnus met het blote oog te bewonderen. Om Neptunus en Uranus goed te kunnen zien heb je een telescoop of sterke verrekijker nodig. De planetaire uitlijning vindt plaats in de vroege ochtend en is ongeveer een uur voor zonsomkomst het best te zien. \nLinks:\nEen zeldzame planetenparade \nPlaneten parade: 6 planeten op één lijn met de maan in juni \nPlanetaire uitlijning 2024: Wat is het? Welke planeten zijn nu zichtbaar? \nDe planetaire uitlijning van 3 juni: dit moet je weten \nDie Parade der Planeten: Dieses Spektakel kannst du jetzt am Nachthimmel beobachten \nGoed kijken en vroeg opstaan: planetenparade nog enkele dagen (een beetje) te zien \nPlanetenparade / Planetaire uitlijning 2025
URL:https://www.a3veen.nl/event/planetenparade-planetaire-uitlijning-2024/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240605
DTEND;VALUE=DATE:20240606
DTSTAMP:20260601T035225
CREATED:20240329T192520Z
LAST-MODIFIED:20240605T085059Z
UID:105173-1717545600-1717631999@www.a3veen.nl
SUMMARY:Oleg Kononenko heeft als eerste persoon 1000 dagen van diens leven in de ruimte doorgebracht
DESCRIPTION:Oleg Dmitrijevitsj Kononenko (Russisch: Олег Дмитриевич Кононенко) (Tsjardzjo-oe\,Turkmeense SSR)\, 21 juni 1964) is een Russisch kosmonaut die op 5 juni 2024 als eerste persoon meer dan duizend uren van diens leven heeft doorgebracht in de ruimte. \nKononenko was vluchtingenieur voor twee ISS-missies: ISS Expeditie 17 en Sojoez TMA-12 die op 8 april 2008 aan ISS werd gekoppeld. Hij keerde terug naar de aarde op 24 oktober 2008. Kononenko was ook commandant van Sojoez-missie TMA-03M\, die op 21 december 2011 naar het ruimtestation ISS vertrok en op 1 juli 2012 landde en waaraan ook de Nederlander André Kuipers en de Amerikaan Don Pettit deelnamen. Zij maakten deel uit van ISS Expeditie 30 en ISS Expeditie 31. Oleg vloog voor zijn derde missie naar het Internationaal Ruimtestation op 22 juli 2015 als commandant van de Sojoez TMA-17M. Samen met NASA-astronaut Kjell Lindgren en de Japanse astronaut Kimiya Yui verbleef hij 5 maanden in het ruimtestation tijdens Expeditie 44 en Expeditie 45. De Sojoez koppelde af op 11 december 2015 en het drietal landde op de steppe van Kazachstan in een nachtlanding. Kononenko heeft een totaal van 736 dagen in de ruimte doorgebracht tijdens zijn vier ISS-missies. Hij vloog op 3 december 2018 opnieuw naar het ISS als commandant van Sojoez MS-11 samen met David Saint-Jacques en Anne McClain. Deze crew nam deel aan ISS-Expeditie 58 en ISS-Expeditie 59. Op 15 september 2023 werd Kononenko gelanceerd aan boord van Sojoez MS-24 en zal een jaar in het internationale ruimtestation verblijven en zal daar zijn duizendste dag in de ruimte beleven. \nLinks:\nNiemand was zo lang in de ruimte als kosmonaut Oleg Kononenko: hoe houdt hij dat vol? \nCosmonaut Oleg Kononenko sets world record for most time spent in space \nBiographies of USSR / Russian Cosmonauts: Kononenko
URL:https://www.a3veen.nl/event/oleg-kononenko-verwacht-als-eerste-persoon-1000-dagen-van-diens-leven-in-de-ruimte-te-hebben-doorgebracht/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240609
DTEND;VALUE=DATE:20240614
DTSTAMP:20260601T035225
CREATED:20240607T183458Z
LAST-MODIFIED:20250107T193721Z
UID:118699-1717891200-1718323199@www.a3veen.nl
SUMMARY:#AAS244 meeting
DESCRIPTION:The American Astronomical Society (AAS) is an American society of professional astronomers and other interested individuals\, headquartered in Washington\, DC. \nThe primary objective of the AAS is to promote the advancement of astronomy and closely related branches of science\, while the secondary purpose includes enhancing astronomy education and providing a political voice for its members through lobbying and grassroots activities. Its current mission is to enhance and share humanity’s scientific understanding of the universe as a diverse and inclusive astronomical community. One goal of the Society to help achieve its mission is to facilitate and strengthen the interactions among members through professional meetings and other means\, including supporting AAS Divisions and others in the field. AAS Meeting Services provides comprehensive meeting planning and support to our Divisions\, ourselves\, and others in the astronomical sciences. \nLinks:\n244th AAS meeting
URL:https://www.a3veen.nl/event/aas244-meeting/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240610T230000
DTEND;TZID=Europe/Amsterdam:20240610T233000
DTSTAMP:20260601T035225
CREATED:20240610T075752Z
LAST-MODIFIED:20250212T142817Z
UID:109204-1718060400-1718062200@www.a3veen.nl
SUMMARY:The Sky at Night - Cosmic Ghosts (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 has a spooky twist. Across the universe\, there are hidden objects that we can’t see\, but astronomers and scientists still believe they’re out there. To find out how we know that these mysterious objects exist\, the team are going ghost-hunting. Cosmic ghost-hunting. \nProf Chris Lintott and Dr Maggie Aderin-Pocock are at Provan Hall\, one of the oldest buildings in Glasgow and the site of several supposed ghost sightings across its 550-year history. But they aren’t looking for anything supernatural. Instead\, they’re meeting the scientists and astronomers trying to solve some of the universe’s greatest mysteries by finding new ways to sense what surrounds us in the cosmos. \nIn the medieval rooms of Provan Hall\, Chris meets Dr Olivia Jones from the UK Astronomy Centre and discovers how a tool often employed by ghost hunters is actually great for finding objects hidden in the dust of the cosmos. He also meets Prof Tessa Baker from the University of Portsmouth\, who shows him how ripples in space-time are helping scientists to detect new\, unseen cosmic events. And while scanning the house for spooky sounds\, Maggie hears a voice from the past\, which leads her to uncover the wonderful work of Vera Rubin – a trailblazing astronomer who helped to prove the existence of dark matter. \nAcross the country\, and over a kilometre further below the Earth’s surface\, guest presenter Prof Chamkaur Ghag is at the Boulby Underground Laboratory. While there\, he discovers how the incredible research site has changed since Patrick Moore and The Sky at Night team visited 20 years ago and meets some of the Boulby team who are working on the hunt for ghostly dark matter particles. \nMeanwhile\, Pete Lawrence is at the Bedford School Observatory to show us how to find and photograph inky\, ghost-like objects in the sky known as dark nebulae\, and to tell us what to look out for in the night sky over the next month. \nLinks:\nThe Sky at Night
URL:https://www.a3veen.nl/event/the-sky-at-night-cosmic-ghosts-tv-bbc-four/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20240620T200000
DTEND;TZID=Europe/Amsterdam:20240620T210000
DTSTAMP:20260601T035225
CREATED:20240620T074923Z
LAST-MODIFIED:20240718T090338Z
UID:109701-1718913600-1718917200@www.a3veen.nl
SUMMARY:Babelsberger Sternennächte : Von 2024BX1 nach Ribbeck - Meteoritenfund in Brandenburg (TV webcast)
DESCRIPTION:Die 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 (Playlist). \nAsteroiden\, kleine Gesteinsbrocken im Sonnensystem\, kommen uns normalerweise nicht sehr nahe. Doch am 20. Januar 2024 wurde ein etwa ein Meter großes Exemplar entdeckt\, das nur knapp drei Stunden später auf die Erdoberfläche traf. Beim Eintritt in die Atmosphäre leuchtete das Objekt als mondhelle Feuerkugel auf\, die in der sternklaren Nacht weithin zu sehen war. Nach dem Ende der leuchtenden Bahn in rund 20 Kilometern Höhe gingen die Fragmente als Meteorite zu Boden. Beobachtungen der Feuerkugel durch Videokameras erlaubten eine genaue Berechnung des Fallortes\, der sich westlich von Nauen in Ribbeck befand. \nSofort wurden Suchaktionen organisiert\, um das frische Material schnell für Untersuchungen zu sichern. Ab dem 23. Januar wurden insgesamt mehr als 200 dokumentierte Fundstücke eingesammelt und untersucht. Dabei stellte sich heraus\, dass die Meteoriten aus dem überaus seltenen Material Aubrit bestehen. Der Meteoritentyp Aubrit ist benannt nach dem Fundort des ersten derartigen Stückes in Aubres\, Frankreich\, 1836. Der Kleinkörper stammt wahrscheinlich aus einem heißen Bereich unseres Sonnensystems und erlebte in seiner Geschichte viele Zusammenstöße mit anderen Gesteinsbrocken. So ist das Material sehr fragil; viele Stücke sind beim Aufprall zersplittert. Die Schmelzkruste ist glasartig und voller Blasen und muss sehr schnell erstarrt sein. Einzelne Meteoritenproben befinden sich noch in Laboren für Isotopenuntersuchungen. Dies ist erst das vierte Mal\, dass Stücke eines zuvor als Asteroid beobachteten Objekts am Boden zu finden waren. \n„Es ist ein großartiger Glückstreffer\, dass der Asteroid mitten in Europa\, sozusagen vor unserer Haustür\, einschlug\, und seine Bahn genau berechnet werden konnte“\, sagt Dr. Jürgen Rendtel\, Mitarbeiter der Abteilung Sonnenphysik\, Experte für Meteoriten und erfolgreicher Finder mehrere Meteoritenstücke. Er erzählt in seinem Vortrag mit dem Titel „Von 2024BX1 nach Ribbeck“ von der Entdeckung des Asteroiden und der mühsamen Suche nach den Bruchstücken auf den Feldern bei Ribbeck. Dabei geht er auch auf die besonderen Eigenschaften des Materials ein. Eine Zusammenfassung der Meteoritensuche und bisherigen Ergebnisse erscheint am 26.06.2024 in einem Artikel von Jürgen Rendtel und Koautoren in der Zeitschrift WGN\, The Journal of the International Meteor Organization. \nBitte beachten Sie\, dass fast alle Vorträge auf Deutsch gehalten werden. \nLink:\nBabelsberger Sternennächte
URL:https://www.a3veen.nl/event/babelsberger-sternennachte-von-2024bx1-nach-ribbeck-meteoritenfund-in-brandenburg-tv-webcast/
CATEGORIES:Astronomie
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240621
DTEND;VALUE=DATE:20240622
DTSTAMP:20260601T035225
CREATED:20240713T125405Z
LAST-MODIFIED:20240713T140224Z
UID:110676-1718928000-1719014399@www.a3veen.nl
SUMMARY:Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWST/NIRISS - publication
DESCRIPTION:Located 50 light-years from Earth\, the beady-eyed exoplanet LHS 1140 b could be a perfect candidate for discovering liquid water outside the solar system\, research ‘Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWST/NIRISS‘ suggests. \nLinks:\nHabitable Zone Exoplanet LHS 1140b is Probably Snowball or Water World \n‘Eyeball’ planet spied by James Webb telescope might be habitable
URL:https://www.a3veen.nl/event/transmission-spectroscopy-of-the-habitable-zone-exoplanet-lhs-1140-b-with-jwst-niriss-publication/
CATEGORIES:Astronomie,Exoplaneet
END:VEVENT
END:VCALENDAR