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#solarsystem

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michael<p>2-Jul-2025<br>Was <a href="https://mastodon.social/tags/Mars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mars</span></a> doomed to be a desert? Study proposes new explanation<br>UChicago-led analysis of Mars Science Laboratory <a href="https://mastodon.social/tags/CuriosityRover" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CuriosityRover</span></a> data may explain why <a href="https://mastodon.social/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planet</span></a> was likely harsh desert for most of recent past </p><p><a href="https://www.eurekalert.org/news-releases/1089426" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">eurekalert.org/news-releases/1</span><span class="invisible">089426</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mastodon.social/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrobiology</span></a> <a href="https://mastodon.social/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> <a href="https://mastodon.social/tags/GoldilocksZone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoldilocksZone</span></a></p>
Scientific European<p>Comet 3I/ATLAS: Third Interstellar Object Observed in Solar System&nbsp;&nbsp;<br>ATLAS (Asteroid Terrestrial-impact Last Alert System) has discovered a new NEOCP (Near-Earth...........<br><a href="https://toot.community/tags/3I" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>3I</span></a>/ATLAS <a href="https://toot.community/tags/ATLAS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ATLAS</span></a> <a href="https://toot.community/tags/Comet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Comet</span></a> <a href="https://toot.community/tags/Interstellarobject" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Interstellarobject</span></a> <a href="https://toot.community/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://toot.community/tags/Solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Solarsystem</span></a><br>SCIEU Team </p><p><a href="https://www.scientificeuropean.co.uk/sciences/space/comet-3i-atlas-third-interstellar-object-observed-in-solar-system/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">scientificeuropean.co.uk/scien</span><span class="invisible">ces/space/comet-3i-atlas-third-interstellar-object-observed-in-solar-system/</span></a></p>
anlomedad<p>A new paper argues that tropical forests 252Ma (million years ago) got eliminated and this elimination caused Earth to cross a <a href="https://climatejustice.social/tags/climate" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>climate</span></a> tipping point.</p><p>From the Introduction: "The latest Permian to Early Triassic was a period of intense environmental and biotic stress. During the Permian–Triassic Mass Extinction (PTME) at ~252 Ma, around 81–94% of marine invertebrate species and 89% of terrestrial tetrapod genera became extinct. It is generally agreed that the PTME was driven by volcanogenic carbon emissions from Siberian Traps volcanism, potentially coupled with additional thermogenic releases, resulting in intense greenhouse warming."<br><a href="https://www.nature.com/articles/s41467-025-60396-y" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nature.com/articles/s41467-025</span><span class="invisible">-60396-y</span></a> "Early Triassic super-greenhouse climate driven by vegetation collapse" by Zhen Xu et al 2025</p><p>Pic 1 shows the Earth system configuration at 250Ma (a different planet so don't try to apply their findings to today's Earth😁 )</p><p>Judd, Tierney's CO2 and temperature evolution go separate ways at 250Ma.<br> CO2 concentration directly after the mass extinction event is badly constraint, uncertainty spans from 2000 down to 200ppm.<br>This large uncertainty makes it indeed possible that "intense greenhouse warming" followed the mass extinction at 250Ma. But the uncertainty span also allows the hypothesis that GHG were not responsible for the temperature rise 250Ma, and that there was no "super-greenhouse climate" nor "driven by vegetation collapse". </p><p>What then?<br>I am reminded&nbsp;of <a href="https://www.nature.com/articles/s41550-024-02279-8" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nature.com/articles/s41550-024</span><span class="invisible">-02279-8</span></a> "A possible direct exposure of the Earth to the cold dense interstellar medium 2–3 Myr ago" by Opher et al 2024.<br>This study, and a few others published by the same team last year, took the software <a href="https://climatejustice.social/tags/Gaia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gaia</span></a> by ESA and saw that our solar system was visited by –&nbsp;or travelled through –&nbsp;a cloud of hydrogen in that time, precisely 4 million years ago to ~700 thousand years ago. <br>Their paper comes with an interactive app to see when it started and ended <a href="https://faun.rc.fas.harvard.edu/czucker/Paper_Figures/Interactive_LxCC.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">faun.rc.fas.harvard.edu/czucke</span><span class="invisible">r/Paper_Figures/Interactive_LxCC.html</span></a><br> <br>At 2.7Ma, the cloud was so dense that it shrank the heliosphere which otherwise protects Earth from cosmic radiation. <br>Further more, the cloud's hydrogen destroys Earth's ozone layer in the stratosphere and in the mesosphere.</p><p>A destroyed ozone layer causes mutations in organisms, eg. cancers, and increases insolation = heats up the planet.</p><p>Above the stratosphere is the earth's washing machine where OH radicals bomb <a href="https://climatejustice.social/tags/methane" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>methane</span></a> molecules and other gases to bits. <br>I don't know how the abundance of OH radicals is affected by increased exposure to cosmic rays. I only mention it as a potential additional factor for temperature evolution during a cloud traversal. </p><p>"Polar mesospheric ozone becomes significantly depleted, but the total ozone column broadly increases. Furthermore, we show that the densest NLCs lessen the amount of sunlight reaching the surface instantaneously by up to 7% while halving outgoing longwave radiation." from <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024GL110174" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">agupubs.onlinelibrary.wiley.co</span><span class="invisible">m/doi/full/10.1029/2024GL110174</span></a> "Earth's Mesosphere During Possible Encounters With Massive Interstellar Clouds 2 and 7 Million Years Ago" by Miller, Opher et al 2024 (same team as above). <br>More Ozone in the total column = more heating (as opposed to ozone in the stratosphere/mesosphere where it serves as coolant by deflecting sunlight back into space). <br>"Halving outgoing longwave radiation" by NLC= noctilucent clouds (see pic 2) is also a warming factor. </p><p>Now, maybe this hydrogen cloud was a small one which affected our sun's <a href="https://climatejustice.social/tags/heliosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>heliosphere</span></a> from 4 million years ago to 700thousand years ago. </p><p>Maybe, the galactic region through which our <a href="https://climatejustice.social/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> hurls is also home to larger clouds, and maybe, 250Ma our sun and Earth encountered such a larger one. <br>Large enough to have enough time to raise temperature by 10°C for a couple million years –&nbsp;in that particular Earth land-oceans-biomes configuration in 250Ma.</p><p>And maybe, this was also just when lotsa radioactive stuff from a <a href="https://climatejustice.social/tags/supernova" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>supernova</span></a> happened to fly through space as well. <br>Which then added to the mutations from the vanished ozone layer. <br>=Mass extinction. </p><p>Radioactive stuff from supernovae is found in Earth crust as 60Fe and 244Pu. They have half-lives of 2.62mio and 8mio years respectively. <br>And indeed, their abundance increases during the period of the most recent known "Gaia cloud" traversal: <br>"Our results show that the 60Fe signal onset occurs around 2.6 Ma to 2.8 Ma, near the lower Pleistocene boundary, terminates around 1.7 Ma, and peaks at about 2.2 Ma." <a href="https://www.pnas.org/doi/abs/10.1073/pnas.1601040113" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">pnas.org/doi/abs/10.1073/pnas.</span><span class="invisible">1601040113</span></a> "Time-resolved 2-million-year-old supernova activity discovered in Earth’s microfossil record" by Ludwig et al 2016. </p><p>Sadly, these half lives are too short to use as proxy for a potential cloud traversal in 250Ma. <br>But maybe, <a href="https://climatejustice.social/tags/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophysics</span></a> can think of a similar proxy and <a href="https://climatejustice.social/tags/geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geology</span></a> can search for it?</p><p><a href="https://climatejustice.social/tags/TippingPoint" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TippingPoint</span></a> <a href="https://climatejustice.social/tags/atmosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>atmosphere</span></a> <a href="https://climatejustice.social/tags/chemistry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>chemistry</span></a> <a href="https://climatejustice.social/tags/PaleoClimate" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PaleoClimate</span></a></p>
K.Llewellin :coffefied:<p>In the Search for Earth-like Worlds, We Should Probably Focus on Red Dwarfs <a href="https://www.universetoday.com/articles/in-the-search-for-earth-like-worlds-we-should-probably-focus-on-red-dwarfs" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">universetoday.com/articles/in-</span><span class="invisible">the-search-for-earth-like-worlds-we-should-probably-focus-on-red-dwarfs</span></a> 🪐 <a href="https://masto.ai/tags/Exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanet</span></a> <a href="https://masto.ai/tags/Exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanets</span></a> <a href="https://masto.ai/tags/AlienWorlds" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AlienWorlds</span></a> <a href="https://masto.ai/tags/AlienLife" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AlienLife</span></a> <a href="https://masto.ai/tags/Extraterrestrials" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Extraterrestrials</span></a> <a href="https://masto.ai/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://masto.ai/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://masto.ai/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a></p>
KB Sez<p>It's Official: <a href="https://mastodon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> Confirms New Interstellar Object Is Zooming Through Solar System</p><p>Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our <a href="https://mastodon.social/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> – only the third ever spotted, though scientists suspect many more may slip past unnoticed.</p><p>The visitor from the stars, designated 3I/Atlas is likely the largest yet detected. It has been classified as a comet</p><p><a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> </p><p><a href="https://www.sciencealert.com/its-official-nasa-confirms-new-interstellar-object-is-zooming-through-solar-system" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">sciencealert.com/its-official-</span><span class="invisible">nasa-confirms-new-interstellar-object-is-zooming-through-solar-system</span></a></p>
Bytes Europe<p>Scientists tracking ‘interstellar’ object that has come to us from another solar system <a href="https://www.byteseu.com/1159009/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">byteseu.com/1159009/</span><span class="invisible"></span></a> <a href="https://pubeurope.com/tags/DavidRankin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DavidRankin</span></a> <a href="https://pubeurope.com/tags/EuropeanSpaceAgency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EuropeanSpaceAgency</span></a> <a href="https://pubeurope.com/tags/InterstellarObject" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>InterstellarObject</span></a> <a href="https://pubeurope.com/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://pubeurope.com/tags/NationalAeronauticsAndSpaceAdministration" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NationalAeronauticsAndSpaceAdministration</span></a> <a href="https://pubeurope.com/tags/observations" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>observations</span></a> <a href="https://pubeurope.com/tags/SaguaroObservatory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SaguaroObservatory</span></a> <a href="https://pubeurope.com/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://pubeurope.com/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> <a href="https://pubeurope.com/tags/StarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>StarSystem</span></a></p>
K.Llewellin :coffefied:<p>New Propulsion Systems Could Enable a Mission to Sedna <a href="https://www.universetoday.com/articles/new-propulsion-systems-could-enable-a-mission-to-sedna" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">universetoday.com/articles/new</span><span class="invisible">-propulsion-systems-could-enable-a-mission-to-sedna</span></a> 🚀 <a href="https://masto.ai/tags/SpaceTravel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SpaceTravel</span></a> <a href="https://masto.ai/tags/InterstellarSpace" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>InterstellarSpace</span></a> <a href="https://masto.ai/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://masto.ai/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://masto.ai/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a></p>
Starry Time Podcast<p>In these high temps I'm trying to keep perspective -- at least we're not on <a href="https://universeodon.com/tags/Venus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Venus</span></a> 🥵 😂 </p><p>📷 :<a href="https://science.nasa.gov/resource/solar-system-temperatures/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/resource/sola</span><span class="invisible">r-system-temperatures/</span></a></p><p><a href="https://universeodon.com/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://universeodon.com/tags/weather" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>weather</span></a> <a href="https://universeodon.com/tags/Heat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Heat</span></a> <a href="https://universeodon.com/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <a href="https://universeodon.com/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://universeodon.com/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://universeodon.com/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> <a href="https://universeodon.com/tags/HeatDome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HeatDome</span></a> <a href="https://universeodon.com/tags/HeatWave" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HeatWave</span></a> <a href="https://universeodon.com/tags/HighTemperature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HighTemperature</span></a></p>
News-Cafe.eu blog<p>China’s hidden power to slow Earth’s rotation. NASA research says the Three Gorges Dam affects the planet’s movement. <br><a href="https://www.news-cafe.eu/?go=news&amp;n=13689" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">news-cafe.eu/?go=news&amp;n=13689</span><span class="invisible"></span></a><br><a href="https://mastodon.world/tags/nasa" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nasa</span></a> <a href="https://mastodon.world/tags/earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earth</span></a> <a href="https://mastodon.world/tags/solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarsystem</span></a> <a href="https://mastodon.world/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://mastodon.world/tags/cosmos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cosmos</span></a> <a href="https://mastodon.world/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>universe</span></a> <a href="https://mastodon.world/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mastodon.world/tags/research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>research</span></a> <a href="https://mastodon.world/tags/china" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>china</span></a></p>
Benjamin Carr, Ph.D. 👨🏻‍💻🧬<p><a href="https://hachyderm.io/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a>'s Voyager <a href="https://hachyderm.io/tags/Spacecraft" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Spacecraft</span></a> Found A 30,000-50,000 Kelvin "Wall" At Edge Of Our <a href="https://hachyderm.io/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a><br>While not a hard "wall," both spacecraft measured temps of 30,000-50,000 kelvin (54,000-90,000F), which is why it is referred to as "wall of fire". Craft survived wall as, though the particles they measured were extremely energetic, chances of collision in this particle-sparse region of <a href="https://hachyderm.io/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> are so low that not enough heat could be transferred to the duo. <br><a href="https://www.iflscience.com/nasas-voyager-spacecraft-found-a-30000-50000-kelvin-wall-at-the-edge-of-our-solar-system-79454" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">iflscience.com/nasas-voyager-s</span><span class="invisible">pacecraft-found-a-30000-50000-kelvin-wall-at-the-edge-of-our-solar-system-79454</span></a><br><a href="https://archive.ph/tRN2X" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">archive.ph/tRN2X</span><span class="invisible"></span></a></p>
MPS Göttingen<p>Recently, the German Society for Planetary Research was founded in <a href="https://academiccloud.social/tags/M%C3%BCnster" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Münster</span></a>. Congratulations! Web page and press release: <a href="https://www.planet-dgp.de" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">planet-dgp.de</span><span class="invisible"></span></a> 🔭</p><p><span class="h-card" translate="no"><a href="https://bsky.brid.gy/r/https://bsky.app/profile/uni-muenster.de" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>uni-muenster.de</span></a></span></p><p><a href="https://academiccloud.social/tags/DGP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGP</span></a> <a href="https://academiccloud.social/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planets</span></a> <a href="https://academiccloud.social/tags/planetaryscience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planetaryscience</span></a> <a href="https://academiccloud.social/tags/planetaryresearch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planetaryresearch</span></a> <a href="https://academiccloud.social/tags/solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarsystem</span></a> <a href="https://academiccloud.social/tags/solarsystemexploration" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarsystemexploration</span></a> <a href="https://academiccloud.social/tags/UniMuenster" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UniMuenster</span></a> <a href="https://academiccloud.social/tags/DLR" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DLR</span></a> <a href="https://academiccloud.social/tags/MPSG%C3%B6ttingen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MPSGöttingen</span></a> <a href="https://academiccloud.social/tags/TUBraunschweig" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TUBraunschweig</span></a></p>
Benjamin Carr, Ph.D. 👨🏻‍💻🧬<p>Major <a href="https://hachyderm.io/tags/telescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>telescope</span></a> hosts world's largest <a href="https://hachyderm.io/tags/digitalcamera" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>digitalcamera</span></a>: how it will transform astronomy<br>Massive telescope will map the Universe and provide an evolving record of the <a href="https://hachyderm.io/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> and distant <a href="https://hachyderm.io/tags/stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stars</span></a>.<br>To be seen at full resolution, each of the <a href="https://hachyderm.io/tags/VeraCRubin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>VeraCRubin</span></a> Observatory’s 3,200 megapixel shots — captured with the world’s largest digital camera — would take several hundred high definition (HD) television screens put together. <br><a href="https://www.nature.com/articles/d41586-025-01798-2" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nature.com/articles/d41586-025</span><span class="invisible">-01798-2</span></a></p>
K.Llewellin :coffefied:<p>Webb telescope images frigid exoplanet in strange orbit <a href="https://phys.org/news/2025-06-webb-telescope-images-frigid-exoplanet.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phys.org/news/2025-06-webb-tel</span><span class="invisible">escope-images-frigid-exoplanet.html</span></a> 🪐 <a href="https://masto.ai/tags/Exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanet</span></a> <a href="https://masto.ai/tags/Exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanets</span></a> <a href="https://masto.ai/tags/AlienWorlds" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AlienWorlds</span></a> <a href="https://masto.ai/tags/AlienLife" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AlienLife</span></a> <a href="https://masto.ai/tags/Extraterrestrials" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Extraterrestrials</span></a> <a href="https://masto.ai/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://masto.ai/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://masto.ai/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a></p>
IMPRS Solar System School<p>The Institute of Geophysics and Extraterrestrial Physics of the Technische Universität Braunschweig is looking to fill a researcher position (salary group 13 TV-L 100%) in asteroid science as part of J. Agarwal’s research group, starting from the earliest possible date for a period of 3 years. Review of applications will begin on June 16, 2025, and continue until the position is filled.</p><p><a href="https://www.tu-braunschweig.de/fileadmin/Redaktionsgruppen/Institute_Fakultaet_5/IGEP/Stellenauschreibung/phd_position_active_asteroids.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">tu-braunschweig.de/fileadmin/R</span><span class="invisible">edaktionsgruppen/Institute_Fakultaet_5/IGEP/Stellenauschreibung/phd_position_active_asteroids.pdf</span></a></p><p><span class="h-card" translate="no"><a href="https://wisskomm.social/@tubraunschweig" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>tubraunschweig</span></a></span> </p><p><a href="https://academiccloud.social/tags/imprs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>imprs</span></a> <a href="https://academiccloud.social/tags/tubraunschweig" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tubraunschweig</span></a> <a href="https://academiccloud.social/tags/phd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>phd</span></a> <a href="https://academiccloud.social/tags/jobad" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>jobad</span></a> <a href="https://academiccloud.social/tags/asteroid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>asteroid</span></a> <a href="https://academiccloud.social/tags/solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarsystem</span></a></p>
News-Cafe.eu blog<p>A new asteroid threat for Earth. From Venus. Astronomers warn that Venus’ orbit is hiding rocks that could change their course towards our planet. <br><a href="https://www.news-cafe.eu/?go=news&amp;n=13681" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">news-cafe.eu/?go=news&amp;n=13681</span><span class="invisible"></span></a><br><a href="https://mastodon.world/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://mastodon.world/tags/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophysics</span></a> <a href="https://mastodon.world/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.world/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mastodon.world/tags/cosmos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cosmos</span></a> <a href="https://mastodon.world/tags/research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>research</span></a> <a href="https://mastodon.world/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>universe</span></a> <a href="https://mastodon.world/tags/solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarsystem</span></a> <a href="https://mastodon.world/tags/earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earth</span></a> <a href="https://mastodon.world/tags/venus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>venus</span></a></p>
Spaceflight 🚀<p>Number of <a href="https://spacey.space/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planets</span></a> 🪐 discovered outside the <a href="https://spacey.space/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> (5824) <a href="https://ourworldindata.org/grapher/cumulative-exoplanets-by-method" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">ourworldindata.org/grapher/cum</span><span class="invisible">ulative-exoplanets-by-method</span></a></p><p><a href="https://spacey.space/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</span></a> <a href="https://spacey.space/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SETI</span></a> <a href="https://spacey.space/tags/OurWorldInData" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OurWorldInData</span></a></p>
K.Llewellin :coffefied:<p>NASA Pulls the Plug on Europa Lander, but Scientists Propose a Plan B <a href="https://gizmodo.com/nasa-pulls-the-plug-on-europa-lander-but-scientists-propose-a-plan-b-2000611741" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">gizmodo.com/nasa-pulls-the-plu</span><span class="invisible">g-on-europa-lander-but-scientists-propose-a-plan-b-2000611741</span></a> 🪐 <a href="https://masto.ai/tags/AlienLife" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AlienLife</span></a> <a href="https://masto.ai/tags/Extraterrestrials" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Extraterrestrials</span></a> <a href="https://masto.ai/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://masto.ai/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://masto.ai/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> <a href="https://masto.ai/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a></p>
grobi<p>This animation shows all L3 WISPR full-field observations from the twenty-first PSP Mission Encounter (2024-09-25 - 2024-10-05). We have superimposed a grid showing helioprojective longitude and latitude, and a scale representation of the size and location of the Sun in the observations using the SDO/HMI Carrington map for this time period. The velocity and distance metrics displayed on the movies correspond respectively to the spacecraft's heliocentric velocity in kilometers per second, and its distance from the Sun's center in units of solar radii (where 1 solar radius = 695,700km). The "FOV Range" label provides the plane-of-sky distance limits of the inner and outermost edges of the fields of view, in units of solar radii. The horizontal blue line indicates the orbital plane of PSP. The timespan of this composite movie covers only the nominal science window when the spacecraft was within 0.25 au; a limited amount of data outside of this range may be available at the below links.<br>You can download this movie directly as an 101MB mp4 file. This sequence is also available as data processed via the LW Algorithm developed by Dr. Guillermo Stenborg (JHUAPL) and detailed in Appendix A of Howard et al. 2022 (ApJ, 936, id.43. DOI 10.3847/1538-4357/ac7ff5). Please contact the team for access to this data, which will be posted here one year after the acquisition of those observations. Team contact information can be found in Section 1.2 of the WISPR User's Guide <br><a href="https://wispr.nrl.navy.mil/sites/wispr.nrl.navy.mil/files/wispr_data_user_guide_v3.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">wispr.nrl.navy.mil/sites/wispr</span><span class="invisible">.nrl.navy.mil/files/wispr_data_user_guide_v3.pdf</span></a> [PDF link].</p><p>[Credit: NASA/NRL/JHUAPL. Movie processed/compiled by Guillermo Stenborg (JHUAPL) and Karl Battams (NRL). SDO inset courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.]</p><p>/*grobi: for a better resolution go to:<br><a href="https://wispr.nrl.navy.mil/encounter21-summary" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">wispr.nrl.navy.mil/encounter21</span><span class="invisible">-summary</span></a> but that's a huge file !:D</p><p><a href="https://defcon.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://defcon.social/tags/solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarsystem</span></a> <a href="https://defcon.social/tags/sun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sun</span></a> <a href="https://defcon.social/tags/parker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>parker</span></a> <a href="https://defcon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophotography</span></a> <a href="https://defcon.social/tags/photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>photography</span></a> <a href="https://defcon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://defcon.social/tags/astronomie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomie</span></a> <a href="https://defcon.social/tags/nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nature</span></a> <a href="https://defcon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a></p>
Chao-c'<p>Tohle je fasicnující - naprostou náhodou bylo díky vizualizaci reálných dat zjištěno, že Oortův oblak má ve skutečnosti tvar spirály (něco jako minigalaxie kolem Sluneční soustavy!)<br><a href="https://apnews.com/article/museum-planetarium-oort-cloud-b0050c65ebff830812b505cdd8c476ec" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">apnews.com/article/museum-plan</span><span class="invisible">etarium-oort-cloud-b0050c65ebff830812b505cdd8c476ec</span></a></p><p><a href="https://f.cz/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://f.cz/tags/solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>solarsystem</span></a> <a href="https://f.cz/tags/oortcloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>oortcloud</span></a></p>
Daniel Pomarède<p>An accidental discovery: astronomers find a spiral structure in the Oort cloud by chance after data from a simulation were visualized in preparation of a new space show at the Hayden Planetarium</p><p>☑️ news <a href="https://apnews.com/article/museum-planetarium-oort-cloud-b0050c65ebff830812b505cdd8c476ec" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">apnews.com/article/museum-plan</span><span class="invisible">etarium-oort-cloud-b0050c65ebff830812b505cdd8c476ec</span></a><br>☑️ research paper <a href="https://doi.org/10.3847/1538-4357/adbf9b" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.3847/1538-4357/adbf</span><span class="invisible">9b</span></a> </p><p><a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://mastodon.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://mastodon.social/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a> <a href="https://mastodon.social/tags/OortCloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OortCloud</span></a> <a href="https://mastodon.social/tags/Planetarium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Planetarium</span></a> <a href="https://mastodon.social/tags/HaydenPlanetarium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HaydenPlanetarium</span></a> <a href="https://mastodon.social/tags/visualization" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>visualization</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mastodon.social/tags/news" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>news</span></a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEM</span></a> <a href="https://mastodon.social/tags/simulation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>simulation</span></a> <a href="https://mastodon.social/tags/comet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>comet</span></a> <a href="https://mastodon.social/tags/comets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>comets</span></a></p>