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#biosignatures

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Daniel Fischer<p>New Constraints on DMS and DMDS in the Atmosphere of K2-18 b from JWST MIRI: <a href="https://arxiv.org/abs/2504.12267" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2504.12267</span><span class="invisible"></span></a> -&gt; Strongest hints yet of biological activity outside the solar system: <a href="https://www.eurekalert.org/news-releases/1080558" 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">080558</span></a> - but see also <a href="https://iopscience.iop.org/article/10.3847/1538-4357/ad8565" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/1538-4357/ad8565</span></a> (Evidence for Abiotic Dimethyl Sulfide in Cometary Matter) and <a href="https://iopscience.iop.org/article/10.3847/2041-8213/ad74da" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/2041-8213/ad74da</span></a> (Abiotic Production of Dimethyl Sulfide, Carbonyl Sulfide, and Other Organosulfur Gases via Photochemistry: Implications for <a href="https://scicomm.xyz/tags/Biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Biosignatures</span></a> and Metabolic Potential)!</p>
Richard<p>Habitability and Biosignatures</p><p><a href="https://arxiv.org/abs/2503.22990" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2503.22990</span><span class="invisible"></span></a></p><p>"The present work provides an introductory compendium of key aspects of habitability and biosignatures of importance to the search for life in exoplanetary environments. Basic concepts of planetary habitability are introduced along with essential requirements for life as we know it and the various factors that affect habitability."</p><p><a href="https://scholar.social/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</span></a> <a href="https://scholar.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://scholar.social/tags/Biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Biosignatures</span></a> <a href="https://scholar.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a></p>
Daniel Fischer<p>The Detectability of CH4/CO2/CO and N2O <a href="https://scicomm.xyz/tags/Biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Biosignatures</span></a> Through Reflection Spectroscopy of Terrestrial Exoplanets: <a href="https://iopscience.iop.org/article/10.3847/1538-3881/ad88eb" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/1538-3881/ad88eb</span></a> -&gt; Life Is Like a Box of Potential Biosignatures: <a href="https://aasnova.org/2025/02/11/life-is-like-a-box-of-potential-biosignatures/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">aasnova.org/2025/02/11/life-is</span><span class="invisible">-like-a-box-of-potential-biosignatures/</span></a></p>
Hervé Cottin<p>Calendrier de l' <a href="https://piaille.fr/tags/avent" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>avent</span></a> de l' <a href="https://piaille.fr/tags/exobiologie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exobiologie</span></a> (12/24) </p><p>Quelles pourraient être les traces d'une vie primitive martienne disparue ? <br>Avec beaucoup de chance, des <a href="https://piaille.fr/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> claires et sans équivoque seront découvertes sur Mars dans les décennies à venir avec des rovers ou un retour d'échantillons.</p>
Daniel Fischer<p>Biogenic Sulfur Gases as <a href="https://scicomm.xyz/tags/Biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Biosignatures</span></a> on Temperate Sub-Neptune Waterworlds: <a href="https://iopscience.iop.org/article/10.3847/2041-8213/ad3801" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/2041-8213/ad3801</span></a> -&gt; Webb telescope probably didn’t find life on an exoplanet ... yet: <a href="https://news.ucr.edu/articles/2024/05/02/webb-telescope-probably-didnt-find-life-exoplanet-yet" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">news.ucr.edu/articles/2024/05/</span><span class="invisible">02/webb-telescope-probably-didnt-find-life-exoplanet-yet</span></a> - claims of biosignature gas detection were premature.</p>
Spaceflight 🚀<p>“In the media, everybody was like, ‘Oh, maybe we have detected life!’”. Researchers will need to be more careful about interpreting DMS <a href="https://spacey.space/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> 🦠. <a href="https://www.science.org/content/article/what-presumed-sign-life-doing-dead-comet" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">science.org/content/article/wh</span><span class="invisible">at-presumed-sign-life-doing-dead-comet</span></a></p><p><a href="https://spacey.space/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SETI</span></a></p>
Daniel Pomarède<p>Astrobiology Journal covers appreciation post</p><p>Atacama Rover Astrobiology Drilling Studies (ARADS)</p><p><a href="https://liebertpub.com/toc/ast/23/12" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">liebertpub.com/toc/ast/23/12</span><span class="invisible"></span></a></p><p>Featuring a collection of papers about searching and identifying biosignatures in a well-studied terrestrial Mars-analog environment, in the hyper-arid Atacama Desert.</p><p>📷 "Rover Under the Milky Way" NASA/CampoAlto/Victor Robles <a href="https://www.nasa.gov/image-article/rover-under-milky-way-atacama-rover-astrobiology-drilling-studies/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nasa.gov/image-article/rover-u</span><span class="invisible">nder-milky-way-atacama-rover-astrobiology-drilling-studies/</span></a></p><p><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/Atacama" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Atacama</span></a> <a href="https://mastodon.social/tags/ARADS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ARADS</span></a> <a href="https://mastodon.social/tags/rover" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rover</span></a> <a href="https://mastodon.social/tags/chile" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>chile</span></a> <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/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</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/life" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>life</span></a> <a href="https://mastodon.social/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</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/enineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>enineering</span></a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEM</span></a></p>
Daniel Pomarède<p>Carnegie Scientists Share How the Giant Magellan Will Change Astronomy</p><p><a href="https://carnegiescience.edu/carnegie-scientists-share-how-giant-magellan-will-change-astronomy" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">carnegiescience.edu/carnegie-s</span><span class="invisible">cientists-share-how-giant-magellan-will-change-astronomy</span></a></p><p><a href="https://mastodon.social/tags/carnegie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>carnegie</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/GiantMagellan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GiantMagellan</span></a> <a href="https://mastodon.social/tags/GiantMagellanTelescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GiantMagellanTelescope</span></a> <a href="https://mastodon.social/tags/GMT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GMT</span></a> <a href="https://mastodon.social/tags/telescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>telescope</span></a> <a href="https://mastodon.social/tags/LasCampanas" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LasCampanas</span></a> <a href="https://mastodon.social/tags/LCO" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LCO</span></a> <a href="https://mastodon.social/tags/observatory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>observatory</span></a> <a href="https://mastodon.social/tags/Chile" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Chile</span></a> <a href="https://mastodon.social/tags/Atacama" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Atacama</span></a> <a href="https://mastodon.social/tags/desert" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>desert</span></a> <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/astronomers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomers</span></a> <a href="https://mastodon.social/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>universe</span></a> <a href="https://mastodon.social/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planets</span></a> <a href="https://mastodon.social/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</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/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> <a href="https://mastodon.social/tags/stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stars</span></a> <a href="https://mastodon.social/tags/clusters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>clusters</span></a> <a href="https://mastodon.social/tags/galaxies" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>galaxies</span></a> <a href="https://mastodon.social/tags/darkmatter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>darkmatter</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/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEM</span></a></p>
Bibiana Prinoth<p>Good morning friends! I am back to tell you more from <a href="https://astrodon.social/tags/ExSSV" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ExSSV</span></a> - apologies for skipping yesterday, my mind wasn’t up for it. </p><p>Today, we start with <a href="https://astrodon.social/tags/habitability" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>habitability</span></a>, <a href="https://astrodon.social/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> <a href="https://astrodon.social/tags/technosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>technosignatures</span></a>.</p><p>We kick off the session with Tiffany Kataria on assessing <a href="https://astrodon.social/tags/conditions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>conditions</span></a> for the origin of <a href="https://astrodon.social/tags/life" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>life</span></a> on <a href="https://astrodon.social/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanet</span></a>. For Tiffany, the origin of life is from geophysics to biophysics and important - habitable doesn’t mean inhabited and the origin of life is a way to rule out these false positives. <a href="https://astrodon.social/tags/ExSSV" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ExSSV</span></a></p>
Matt Willemsen<p>The LIFE telescope passed its first test, detecting biosignatures on Earth<br><a href="https://phys.org/news/2024-03-life-telescope-biosignatures-earth.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phys.org/news/2024-03-life-tel</span><span class="invisible">escope-biosignatures-earth.html</span></a> <a href="https://mastodon.social/tags/LIFE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LIFE</span></a> <a href="https://mastodon.social/tags/telescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>telescope</span></a> <a href="https://mastodon.social/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> <a href="https://mastodon.social/tags/Earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Earth</span></a> <a href="https://mastodon.social/tags/intelligence" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>intelligence</span></a>? <a href="https://mastodon.social/tags/atmospheric" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>atmospheric</span></a> <a href="https://mastodon.social/tags/spectrum" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>spectrum</span></a></p>
Daniel Fischer<p>High-spatial resolution functional chemistry of nitrogen compounds in the observed UK <a href="https://scicomm.xyz/tags/meteorite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>meteorite</span></a> fall Winchcombe: <a href="https://www.nature.com/articles/s41467-024-45064-x" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nature.com/articles/s41467-024</span><span class="invisible">-45064-x</span></a> -&gt; Cosmic building blocks of <a href="https://scicomm.xyz/tags/life" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>life</span></a> discovered through the electron microscope: <a href="https://www.uni-muenster.de/news/view.php?cmdid=13836" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">uni-muenster.de/news/view.php?</span><span class="invisible">cmdid=13836</span></a> | Detecting <a href="https://scicomm.xyz/tags/Biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Biosignatures</span></a> in Nearby Rocky <a href="https://scicomm.xyz/tags/Exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanets</span></a> Using [...] the <a href="https://scicomm.xyz/tags/ExtremelyLargeTelescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ExtremelyLargeTelescope</span></a>: <a href="https://iopscience.iop.org/article/10.3847/1538-3881/ad109e" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/1538-3881/ad109e</span></a> -&gt; High-tech telescopes search for chemicals necessary for life on Earth: <a href="https://news.osu.edu/researchers-spying-for-signs-of-life-among-exoplanet-atmospheres/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">news.osu.edu/researchers-spyin</span><span class="invisible">g-for-signs-of-life-among-exoplanet-atmospheres/</span></a></p>
Glyn Moody<p>No, the James Webb Space Telescope hasn’t found life out there—at least not yet - <a href="https://arstechnica.com/space/2024/01/no-the-james-webb-space-telescope-hasnt-found-life-out-there-at-least-not-yet/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">arstechnica.com/space/2024/01/</span><span class="invisible">no-the-james-webb-space-telescope-hasnt-found-life-out-there-at-least-not-yet/</span></a> "It is anticipated that <a href="https://mastodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JWST</span></a> observations may lead to the initial identification of potential <a href="https://mastodon.social/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> that could make habitability more or less likely for a given <a href="https://mastodon.social/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanet</span></a>."</p>
Spaceflight 🚀<p>The system, 100 light years (a 👽 stone's throw) away, has six <a href="https://techhub.social/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planets</span></a>, all about the same size, between two and three times the size of <a href="https://techhub.social/tags/Earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Earth</span></a> 🌏. In the time it takes for the innermost <a href="https://techhub.social/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planet</span></a> 🪐 to go around the <a href="https://techhub.social/tags/star" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>star</span></a> ☀️ three times, the next planet along gets around twice, and so on out to the fourth planet in the system. From there things change to a 4:3 pattern of relative <a href="https://techhub.social/tags/orbit" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>orbit</span></a> speeds for the last two planets. The race is now on to detect <a href="https://techhub.social/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> 🦠 on one of the six planets <a href="https://www.bbc.co.uk/news/science-environment-67488931" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bbc.co.uk/news/science-environ</span><span class="invisible">ment-67488931</span></a></p>
Mikko Tuomi<p>We are inching closer and closer to reliably detecting <a href="https://scicomm.xyz/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> on distant <a href="https://scicomm.xyz/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planets</span></a>.</p><p>Much of the focus is on determining which chemicals indicate <a href="https://scicomm.xyz/tags/life" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>life</span></a>'s presence.</p><p>But life can also create free energy in a system, and excess energy can create chemical disequilibrium. That's what happened on Earth when life got going.</p><p>Could chemical disequilibrium be a <a href="https://scicomm.xyz/tags/biosignature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignature</span></a>?</p><p><a href="https://scicomm.xyz/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://scicomm.xyz/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrobiology</span></a> <a href="https://scicomm.xyz/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</span></a><br><a href="https://phys.org/news/2023-11-life-easiest-planets-earlier-earth.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phys.org/news/2023-11-life-eas</span><span class="invisible">iest-planets-earlier-earth.html</span></a></p><p>Paper by Young et al. (2023):<br><a href="https://arxiv.org/abs/2311.06083" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2311.06083</span><span class="invisible"></span></a></p>
Daniel Fischer<p>Inferring Chemical Disequilibrium Biosignatures for Proterozoic Earth-Like <a href="https://scicomm.xyz/tags/Exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanets</span></a>: <a href="https://arxiv.org/abs/2311.06083" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2311.06083</span><span class="invisible"></span></a> -&gt; "results highlight how remotely detecting chemical <a href="https://scicomm.xyz/tags/disequilibrium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>disequilibrium</span></a> <a href="https://scicomm.xyz/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> can be a useful and metabolism-agnostic approach to biosignature detection."</p>
Mikko Tuomi<p>Subglacial liquid <a href="https://scicomm.xyz/tags/water" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>water</span></a> as a pivotal element in broadening the boundaries of the conventional <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>habitable</span></a> zone.</p><p>The paper has implications on the potential to expand the HZ inwards for tidally locked planets closely orbiting M-dwarf stars, which are frequently regarded as candidates for detecting spectral evidence for <a href="https://scicomm.xyz/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> in <a href="https://scicomm.xyz/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</span></a>.</p><p>Atmosphere and liquid water could coexist on these planets, pushing the limits of the HZ further than previously assumed.</p><p><a href="https://astrobiology.com/2023/11/extended-habitability-of-exoplanets-due-to-subglacial-water-2.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">astrobiology.com/2023/11/exten</span><span class="invisible">ded-habitability-of-exoplanets-due-to-subglacial-water-2.html</span></a></p>
Matt Willemsen<p>Humans Are Ready to Find Alien Life<br>We finally have the tools we need. Now scientists just need to watch and wait.<br>In the thousands of years that people have been arguing about whether life exists elsewhere in the universe, one thing has been constant: No one really has had a clue. But not anymore. That’s because we finally know exactly where to look for aliens.<br><a href="https://www.theatlantic.com/science/archive/2023/10/search-for-alien-life/675707/" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theatlantic.com/science/archiv</span><span class="invisible">e/2023/10/search-for-alien-life/675707/</span></a> #<a href="https://fedibird.com/tags/alien" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>alien</span></a> <a href="https://fedibird.com/tags/life" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>life</span></a> <a href="https://fedibird.com/tags/ET" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ET</span></a> <a href="https://fedibird.com/tags/encounter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>encounter</span></a> <a href="https://fedibird.com/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> <a href="https://fedibird.com/tags/civilization" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>civilization</span></a> <a href="https://fedibird.com/tags/technosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>technosignatures</span></a></p>
Daniel Pomarède<p>Astronomy covers of Science Magazine</p><p>The Maze of Haze (2023) - Labmade aerosols help make sense of alien atmospheres</p><p><a href="https://science.org/toc/science/379/6628" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.org/toc/science/379/66</span><span class="invisible">28</span></a> </p><p>Credit: NASA; ESA; CSA; Joseph Olmsted (STScI)</p><p>Cover story by Zack Savitsky: <a href="https://science.org/content/article/lifting-veil-astronomers-conjure-hazes-obscure-alien-worlds" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.org/content/article/li</span><span class="invisible">fting-veil-astronomers-conjure-hazes-obscure-alien-worlds</span></a></p><p><a href="https://mastodon.social/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>universe</span></a> <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/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> <a href="https://mastodon.social/tags/sciencecovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sciencecovers</span></a> <a href="https://mastodon.social/tags/cover" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cover</span></a> <a href="https://mastodon.social/tags/covers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>covers</span></a> <a href="https://mastodon.social/tags/research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>research</span></a> <a href="https://mastodon.social/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanet</span></a> <a href="https://mastodon.social/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</span></a> <a href="https://mastodon.social/tags/wasp39" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>wasp39</span></a>-b <a href="https://mastodon.social/tags/alienworld" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>alienworld</span></a> <a href="https://mastodon.social/tags/atmosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>atmosphere</span></a> <a href="https://mastodon.social/tags/laboratory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>laboratory</span></a> <a href="https://mastodon.social/tags/experiment" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>experiment</span></a> <a href="https://mastodon.social/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a> <a href="https://mastodon.social/tags/life" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>life</span></a></p>
Tero Keski-Valkama<p>One way to study <a href="https://rukii.net/tags/MachineIntelligence" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MachineIntelligence</span></a> is with more powerful <a href="https://rukii.net/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://rukii.net/tags/telescopes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>telescopes</span></a>.</p><p>Even though we have yet to find examples of other civilizations out there, they certainly are there to be found. There is a growing consensus among scientists that extraterrestrial <a href="https://rukii.net/tags/technosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>technosignatures</span></a> might well be more common than <a href="https://rukii.net/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a>. After all, machines can prosper in all the wide space while biospheres require very specific circumstances.</p><p><a href="https://rukii.net/tags/Biospheres" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Biospheres</span></a> are also very difficult to detect.</p><p>Even if planetary life was fleeting and oft erased by asteroids and gamma ray bursts, once autonomous machines start replicating in space they become practically invulnerable to <a href="https://rukii.net/tags/extinction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>extinction</span></a>.</p><p>Why haven't we found examples yet? Well, we don't quite know what to look for. If you look at astronomy as a field, we almost routinely find things which have no convincing explanations. As these observations often do not repeat, we just shrug and move on.</p><p>Most search for extraterrestrial intelligence so far has focused on planets and biospheres, and only recently we have been starting to look more seriously with a wider focus.</p><p>Regardless, the space is huge, it extends in the cube of the distance, and we haven't really scratched the surface of it yet.</p><p>We might well gain crucial insights into machine intelligence with one of the next generation space telescopes instead of through our own experimentation. At least we know that paperclip maximization doesn't really seem like a thing, that we would have noticed already.</p>
Westport Observatory<p>A <a href="https://vmst.io/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> mission to Saturn's moon <a href="https://vmst.io/tags/Titan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Titan</span></a> passed a significant review. The agency said the <a href="https://vmst.io/tags/Dragonfly" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Dragonfly</span></a> mission passed its preliminary design review earlier this month. The mission, scheduled for launch in 2027, will send a nuclear-powered <a href="https://vmst.io/tags/rotorcraft" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rotorcraft</span></a> to <a href="https://vmst.io/tags/Saturn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Saturn</span></a>'s largest moon, flying through its dense atmosphere to study the <a href="https://vmst.io/tags/moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>moon</span></a> and look for any <a href="https://vmst.io/tags/biosignatures" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>biosignatures</span></a>. </p><p>Check out the replay from October 2022 with Dr. Jani Radebaugh on the WAS YouTube channel.</p><p><a href="https://www.nasa.gov/feature/nasa-s-dragonfly-team-soars-through-major-design-review" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nasa.gov/feature/nasa-s-dragon</span><span class="invisible">fly-team-soars-through-major-design-review</span></a></p>
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