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HistoPol (#HP) 🏴 🇺🇸 🏴<a href="https://berlin.social/@mina" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mina</a> <a href="https://astronomy.social/@admin" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@admin</a> <a href="https://swiss.social/@evelynefoerster" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@evelynefoerster</a> ... may be <a href="https://mastodon.social/tags/Habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Habitable</a> (have conditions favorable to life). Whether our definitions of <a href="https://mastodon.social/tags/Planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Planet</a> can be applied to these newly found objects remains to be seen." science.nasa.gov/solar-system/planets/what-is-a-planet/#h-the-new-definition-of-planets/: Ich mein', <a href="https://mastodon.social/tags/ExoPLANET" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ExoPLANET</a>, wie schwierig kann da eine Klassifikation schon sein? /s 🤦‍♀️🤦‍♂️🤦Im Übrigen muss ein <a href="https://mastodon.social/tags/Planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Planet</a> auch nicht bewohnbar sein! --sonst hätte das <a href="https://mastodon.social/tags/Solarsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Solarsystem</a> nur einen einzigen. Und überhaupt:...

Or M. BialikDays are getting longer, outside, but also on this <a href="https://mastodon.world/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a>. Since its initial accretion, Earth's spin has been slowing down, lengthening the days. These longer days may allow for more oxygen production and carbon burial, making it <a href="https://mastodon.world/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> for the likes of us. <a href="https://www.nature.com/articles/s41561-021-00784-3" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.nature.com/articles/s41561-021-00784-3</a>

Mikko TuomiThe nature of sub-Neptunes is one of the hottest topics in exoplanetary science.Temperate sub-Neptunes are of special interest because some could be <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a>.But these <a href="https://scicomm.xyz/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planets</a> might instead be rocky worlds with thick, hot atmospheres.<a href="https://scicomm.xyz/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://scicomm.xyz/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanets</a> <a href="https://astrobiology.com/2025/04/deciphering-sub-neptune-atmospheres-new-insights-from-geochemical-models-of-toi-270-d.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://astrobiology.com/2025/04/deciphering-sub-neptune-atmospheres-new-insights-from-geochemical-models-of-toi-270-d.html</a>

Mikko TuomiAstronomers have detected the most promising signs yet of a possible <a href="https://scicomm.xyz/tags/biosignature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#biosignature</a> outside the solar system, although they remain cautious.They have detected the chemical fingerprints of dimethyl sulfide and/or dimethyl disulfide, in the <a href="https://scicomm.xyz/tags/atmosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#atmosphere</a> of the <a href="https://scicomm.xyz/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanet</a> K2-18b, which orbits its star in the <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> zone.On Earth, theyare only produced by <a href="https://scicomm.xyz/tags/life" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#life</a>, primarily microbial life such as marine phytoplankton.<a href="https://scicomm.xyz/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://scicomm.xyz/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrobiology</a> <a href="https://www.cam.ac.uk/stories/strongest-hints-of-biological-activity" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.cam.ac.uk/stories/strongest-hints-of-biological-activity</a>

Mikko TuomiProxima Centauri is our nearest stellar neighbor and is known to be a very active M dwarf <a href="https://scicomm.xyz/tags/star" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#star</a>.Known to host a potentially <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> <a href="https://scicomm.xyz/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a>, the star <a href="https://scicomm.xyz/tags/Proxima" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Proxima</a> exhibits very active <a href="https://scicomm.xyz/tags/flare" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#flare</a> activity in optical wavelengths.Depending on the energy and frequency of these flares, nearby planets in the habitable zone might be rendered uninhabitable as the flares strip planetary atmospheres of necessary ingredients such as ozone and water.<a href="https://scicomm.xyz/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://scicomm.xyz/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrobiology</a> <a href="https://phys.org/news/2025-03-small-star-mighty-flares-alma.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://phys.org/news/2025-03-small-star-mighty-flares-alma.html</a>

Mikko TuomiFor decades, scientists have debated how small <a href="https://scicomm.xyz/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanets</a> form.New model suggests that <a href="https://scicomm.xyz/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planets</a> form in narrow rings at specific locations in the <a href="https://scicomm.xyz/tags/protoplanetary" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#protoplanetary</a> disk, making <a href="https://scicomm.xyz/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a> formation more organized than previously believed.Simulations also imply that up to about 1% of super-Earth and mini-Neptune systems could host Earth-like planets within the <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> zone.This implies an occurrence rate of approximately one Earth-like planet per 300 sun-like stars.<a href="https://astrobiology.com/2025/03/research-on-super-earths-and-mini-neptunes-suggests-more-earth-like-planets-may-exist.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://astrobiology.com/2025/03/research-on-super-earths-and-mini-neptunes-suggests-more-earth-like-planets-may-exist.html</a>

Mikko TuomiAstronomers have detected a super-Earth orbiting GJ 3998, a nearby red dwarf located 59 light years away.The new <a href="https://scicomm.xyz/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a>, named GJ 3998 d, is the third planet found in the system and has a mass 6 times larger than that of the Earth.It resides in the optimistic <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> zone of its star and completes an orbit once every 41.8 days.At this distance, GJ 3998 d gets just 20% more stellar insolation compared to what Earth receives by the Sun.<a href="https://scicomm.xyz/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanets</a> <a href="https://scicomm.xyz/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://astrobiology.com/2025/03/a-super-earth-discovered-in-the-habitable-zone-of-nearby-red-dwarf-gj-3998.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://astrobiology.com/2025/03/a-super-earth-discovered-in-the-habitable-zone-of-nearby-red-dwarf-gj-3998.html</a>

Peter Guhl<a href="https://chaos.social/tags/Discovery" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Discovery</a> of the Most Exciting <a href="https://chaos.social/tags/Habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Habitable</a> <a href="https://chaos.social/tags/Planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Planet</a> Near the Solar System - YouTube <a href="https://chaos.social/tags/SciComm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SciComm</a> and <a href="https://chaos.social/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Science</a> by <a href="https://chaos.social/tags/WhatDaMath" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WhatDaMath</a> <a href="https://chaos.social/tags/AntonPetrov" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AntonPetrov</a> <a href="https://www.youtube.com/watch?v=9VTzVAbfPmg" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.youtube.com/watch?v=9VTzVAbfPmg</a>

Ch M[ae][iy]e?r 🇪🇺 🖤 🤍<a href="https://mastodon.social/@Habitable_game" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@Habitable_game</a> <a href="https://astrodon.social/@hausderastronomie" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@hausderastronomie</a> Gibt es <a href="https://digitalcourage.social/tags/Habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Habitable</a> eigentlich auch (wie beschrieben) offline als Brettspiel?Ich finde nur die Online-Variante, und die finde ich mit Google, CDNs, Accountzwang und Discord ehrlich gesagt nicht akzeptabel. 🤔 Klar, es zwingt mich ja keiner das dort zu spielen, aber das machte es mir dann auch mit Schülergruppen nicht möglich.<a href="https://plasmatrap.com/@caos" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@caos</a> <a href="https://feddit.org/c/klimawandel" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@klimawandel</a> <a href="https://mastodon.social/@tazgetroete" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@tazgetroete</a>

ULB Münster › FachInfos"Fröhliche Wissenschaft: Das Brettspiel „Habitable“ basiert auf Erkenntnissen aus der Astronomie. Es zeigt, wie man Ergebnisse der Wissenschaft spielerisch vermitteln kann" <a href="https://mastodon.social/@tazgetroete" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@tazgetroete</a>: <a href="https://taz.de/!6063881/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://taz.de/!6063881/</a> Online spielen: <a href="https://tabletopia.com/games/habitable" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tabletopia.com/games/habitable</a> Weiterführende infos: <a href="https://www.h-its.org/de/2023/10/25/habitable-online/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.h-its.org/de/2023/10/25/habitable-online/</a> <a href="https://openbiblio.social/tags/Wissenschaft" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Wissenschaft</a> <a href="https://openbiblio.social/tags/Spielen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Spielen</a> <a href="https://openbiblio.social/tags/Astronomie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomie</a> <a href="https://openbiblio.social/tags/Habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Habitable</a> <a href="https://openbiblio.social/tags/Wissenschaftskommunikation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Wissenschaftskommunikation</a> <a href="https://openbiblio.social/tags/SciComm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SciComm</a>

Mikko TuomiThe circumstellar liquid-water <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> zone guides the search for inhabited <a href="https://scicomm.xyz/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanets</a>, but remains observationally untested.The inner edge of the habitable zone can be mapped among exoplanets using their lack of surface <a href="https://scicomm.xyz/tags/water" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#water</a>, which, unlike the presence of water, can be unambiguously revealed by atmospheric sulfur species.A population-level search for sulfur-chemistry on M-dwarf <a href="https://scicomm.xyz/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planets</a> can be used to empirically define the habitable zone.<a href="https://scicomm.xyz/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrobiology</a> <a href="https://astrobiology.com/2025/01/tracing-the-inner-edge-of-the-habitable-zone-with-sulfur-chemistry.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://astrobiology.com/2025/01/tracing-the-inner-edge-of-the-habitable-zone-with-sulfur-chemistry.html</a>

EddlestonianThe city of Regalis on the exoplanet Kepler-442b home of the Velpharinsartpal.com/eddlestonian<a href="https://noc.social/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanet</a> <a href="https://noc.social/tags/inhabited" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#inhabited</a> <a href="https://noc.social/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> <a href="https://noc.social/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a> <a href="https://noc.social/tags/city" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#city</a> <a href="https://noc.social/tags/alien" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#alien</a> <a href="https://noc.social/tags/aliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#aliens</a> <a href="https://noc.social/tags/gray" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gray</a> <a href="https://noc.social/tags/ufo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ufo</a> <a href="https://noc.social/tags/saucer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#saucer</a> <a href="https://noc.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a href="https://noc.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://noc.social/tags/unidentidiedflyingobjects" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unidentidiedflyingobjects</a> <a href="https://noc.social/tags/unidentified" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unidentified</a> <a href="https://noc.social/tags/flying" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#flying</a> <a href="https://noc.social/tags/object" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#object</a> <a href="https://noc.social/tags/Unidentified" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Unidentified</a> <a href="https://noc.social/tags/Anomalous" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Anomalous</a> <a href="https://noc.social/tags/Phenomena" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Phenomena</a> <a href="https://noc.social/tags/uap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#uap</a>

EddlestonianThe city of Vallaris on the exoplanet Kepler-1615b home of the Blornaxesartpal.com/eddlestonian<a href="https://noc.social/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanet</a> <a href="https://noc.social/tags/inhabited" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#inhabited</a> <a href="https://noc.social/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> <a href="https://noc.social/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a> <a href="https://noc.social/tags/city" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#city</a> <a href="https://noc.social/tags/alien" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#alien</a> <a href="https://noc.social/tags/aliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#aliens</a> <a href="https://noc.social/tags/gray" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gray</a> <a href="https://noc.social/tags/ufo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ufo</a> <a href="https://noc.social/tags/saucer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#saucer</a> <a href="https://noc.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a href="https://noc.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://noc.social/tags/unidentidiedflyingobjects" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unidentidiedflyingobjects</a> <a href="https://noc.social/tags/unidentified" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unidentified</a> <a href="https://noc.social/tags/flying" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#flying</a> <a href="https://noc.social/tags/object" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#object</a> <a href="https://noc.social/tags/Unidentified" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Unidentified</a> <a href="https://noc.social/tags/Anomalous" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Anomalous</a> <a href="https://noc.social/tags/Phenomena" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Phenomena</a> <a href="https://noc.social/tags/uap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#uap</a>

Mikko TuomiThe organic material found in a few areas on the surface of dwarf <a href="https://scicomm.xyz/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a> <a href="https://scicomm.xyz/tags/Ceres" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ceres</a> is probably of exogenic origin.Impacting asteroids from the outer asteroid belt may have brought it with them.Instead, the dwarf planet's <a href="https://scicomm.xyz/tags/cryovolcanism" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cryovolcanism</a>, in which salty brine rises from the body's interior to the surface, is not responsible for the organic deposits.These findings help to understand where and how <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> conditions could have arisen in the solar system.<a href="https://scicomm.xyz/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrobiology</a> <a href="https://phys.org/news/2025-01-dwarf-planet-ceres-material-space.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://phys.org/news/2025-01-dwarf-planet-ceres-material-space.html</a>

EddlestonianThe city of Solara on the exoplanet Kepler-22b home of the Quolthiansartpal.com/eddlestonian<a href="https://noc.social/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanet</a> <a href="https://noc.social/tags/inhabited" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#inhabited</a> <a href="https://noc.social/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> <a href="https://noc.social/tags/planet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planet</a> <a href="https://noc.social/tags/city" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#city</a> <a href="https://noc.social/tags/alien" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#alien</a> <a href="https://noc.social/tags/aliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#aliens</a> <a href="https://noc.social/tags/gray" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gray</a> <a href="https://noc.social/tags/ufo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ufo</a> <a href="https://noc.social/tags/saucer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#saucer</a> <a href="https://noc.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a href="https://noc.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://noc.social/tags/unidentidiedflyingobjects" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unidentidiedflyingobjects</a> <a href="https://noc.social/tags/unidentified" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unidentified</a> <a href="https://noc.social/tags/flying" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#flying</a> <a href="https://noc.social/tags/object" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#object</a> <a href="https://noc.social/tags/Unidentified" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Unidentified</a> <a href="https://noc.social/tags/Anomalous" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Anomalous</a> <a href="https://noc.social/tags/Phenomena" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Phenomena</a> <a href="https://noc.social/tags/uap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#uap</a>

Hervé CottinCalendrier de l' <a href="https://piaille.fr/tags/avent" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#avent</a> de l' <a href="https://piaille.fr/tags/exobiologie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exobiologie</a> (17/24) Qu'est-ce que la zone <a href="https://piaille.fr/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> autour d'une étoile ? C'est la plage de distance autour d'une étoile pour laquelle on peut en théorie concevoir la présence d'eau liquide à la surface d'une (exo)planète. C'est une affaire de distance à l'étoile...

Mikko TuomiWarm rocky <a href="https://scicomm.xyz/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoplanets</a> within the <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> zone of Sun-like stars are favoured targets for current and future missions.Theory indicates these <a href="https://scicomm.xyz/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#planets</a> could be wet at formation and remain habitable long enough for life to develop.Synthetic observations reliably point to Earth-like <a href="https://scicomm.xyz/tags/biosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#biosphere</a> surface fluxes of oxygen for systems within 10-20 parsecs.<a href="https://scicomm.xyz/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrobiology</a> <a href="https://astrobiology.com/2024/12/detectability-of-biosignatures-in-warm-water-rich-atmospheres.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://astrobiology.com/2024/12/detectability-of-biosignatures-in-warm-water-rich-atmospheres.html</a>Paper by Taysum et al. (2024): <a href="https://arxiv.org/abs/2412.01266" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://arxiv.org/abs/2412.01266</a>

Mikko TuomiThe history of <a href="https://scicomm.xyz/tags/water" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#water</a> on early <a href="https://scicomm.xyz/tags/Mars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mars</a> is uncertain.Determining when water first appeared, where and for how long, are all burning questions that drive Mars exploration. If Mars was once <a href="https://scicomm.xyz/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a>, some amount of water was required.Studying the mineral zircon in a <a href="https://scicomm.xyz/tags/meteorite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#meteorite</a> from Mars reveaös evidence that water was present when the zircon crystal formed 4.45 billion years ago.These new results may represent the oldest evidence for water on Mars.<a href="https://scicomm.xyz/tags/astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrobiology</a> <a href="https://theconversation.com/a-4-45-billion-year-old-crystal-from-mars-reveals-the-planet-had-water-from-the-beginning-243172" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://theconversation.com/a-4-45-billion-year-old-crystal-from-mars-reveals-the-planet-had-water-from-the-beginning-243172</a>

Abie<a href="https://eldritch.cafe/tags/Bioclimat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Bioclimat</a> Le réchauffement climatique côté biologie, un fil pour garder les choses en tête : [repost]- des coins pourtant déjà arides, comme l'Arizona, sont en train de perdre leurs cactus, non par manque d'eau mais parce que même les nuits sont trop caniculaires pour que ces plantes très adaptées acceptent d'ouvrir leur stomates (métabolisme CAM) <a href="https://eldritch.cafe/tags/bioclimat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bioclimat</a> <a href="https://twitter.com/Xero_Phyte/status/1689240412429463553" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://twitter.com/Xero_Phyte/status/1689240412429463553</a>- on avait depuis longtemps des cas de dengue en France européenne, mais uniquement importés. Ce n'est plus le cas. (et pour avoir croisé une copine encore bien diminuée *trois mois* après sa dengue hémorragique en Guyane, ça fait pas envie.) <a href="https://www.lemonde.fr/planete/article/2023/08/04/deux-premiers-cas-autochtones-de-dengue-reperes-dans-les-bouches-du-rhone_6184470_3244.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.lemonde.fr/planete/article/2023/08/04/deux-premiers-cas-autochtones-de-dengue-reperes-dans-les-bouches-du-rhone_6184470_3244.html</a>- le paludisme, considéré comme disparu des USA en 1951, réapparaît avec des cas autochtones en Floride et au Texas, deux États du sud <a href="https://www.cdc.gov/malaria/new_info/2023/malaria_florida.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.cdc.gov/malaria/new_info/2023/malaria_florida.html</a> et même dans le Maryland, au nord-est du pays. <a href="https://www.nbcwashington.com/news/local/malaria-diagnosed-in-maryland-resident-who-had-not-recently-traveled-health-dept/3407162/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.nbcwashington.com/news/local/malaria-diagnosed-in-maryland-resident-who-had-not-recently-traveled-health-dept/3407162/</a>- plus de saumons pour les oursons :( <a href="https://www.theguardian.com/world/2023/sep/26/brown-bear-cubs-in-japan-die-of-starvation-amid-salmon-shortage" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.theguardian.com/world/2023/sep/26/brown-bear-cubs-in-japan-die-of-starvation-amid-salmon-shortage</a>- ça pousse de plus en plus en Antarctique. <a href="https://www.earth.com/news/antarctica-is-experiencing-rapid-plant-growth-concerning-scientists/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.earth.com/news/antarctica-is-experiencing-rapid-plant-growth-concerning-scientists/</a>- "Changement climatique : l'Espagne importe maintenant de l'huile d'olive sud-américaine. La Grèce a vu sa production baisser d'un tiers par rapport à 2022. La Tunisie, la Turquie et la Syrie n'exportent plus." <a href="https://twitter.com/bravepatrie/status/1707439606650544430?t=gs92Ne5aNioU_fi1EVHSAw&s=19" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://twitter.com/bravepatrie/status/1707439606650544430?t=gs92Ne5aNioU_fi1EVHSAw&s=19</a>- l'Angleterre va pouvoir produire du vin... via <a href="https://piaille.fr/@japonmeneatout" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@japonmeneatout</a> <a href="https://www.lemonde.fr/economie/article/2023/09/12/en-raison-du-rechauffement-climatique-le-vin-prospere-dans-la-verte-angleterre_6188945_3234.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.lemonde.fr/economie/article/2023/09/12/en-raison-du-rechauffement-climatique-le-vin-prospere-dans-la-verte-angleterre_6188945_3234.html</a>- le vignoble de Bretagne est en pleine explosion : <a href="https://www.larvf.com/l-incroyable-renaissance-du-vignoble-breton,4785915.asp" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.larvf.com/l-incroyable-renaissance-du-vignoble-breton,4785915.asp</a> Boom des installations <a href="https://www.ouest-france.fr/bretagne/theix-noyalo-56450/en-bretagne-le-boom-des-installations-de-vignerons-698faae8-48ea-11ee-a179-0f0217016be2" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.ouest-france.fr/bretagne/theix-noyalo-56450/en-bretagne-le-boom-des-installations-de-vignerons-698faae8-48ea-11ee-a179-0f0217016be2</a>- L'Amazone devient trop chaude pour ses dauphins d'eau douce... <a href="https://www.liberation.fr/environnement/biodiversite/en-amazonie-les-eaux-trop-chaudes-responsables-de-la-mort-dune-centaine-de-dauphins-roses-20231002_LE5ZI7TNMNETLPIJ3C22B5IWWU/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.liberation.fr/environnement/biodiversite/en-amazonie-les-eaux-trop-chaudes-responsables-de-la-mort-dune-centaine-de-dauphins-roses-20231002_LE5ZI7TNMNETLPIJ3C22B5IWWU/</a>- la Floride est en train de perdre ses coraux. "the proportion of Florida reef covered in living coral is currently between 1% and 5%, dramatically less than 40 years ago when it was more than 30%." <a href="https://www.vox.com/climate/23868423/florida-coral-reef-bleaching-heat-wave-climate-change" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.vox.com/climate/23868423/florida-coral-reef-bleaching-heat-wave-climate-change</a>- RT <a href="https://scicomm.xyz/@mustapipa" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mustapipa</a> "Anthropogenic warming of the <a href="https://eldritch.cafe/tags/oceans" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oceans</a> and associated deoxygenation are altering <a href="https://eldritch.cafe/tags/marine" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#marine</a> ecosystems. Changes in ocean temperature and oxygen drive a centuries-long irreversible loss in the <a href="https://eldritch.cafe/tags/habitable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#habitable</a> volume of the upper 1000 m of the world <a href="https://eldritch.cafe/tags/ocean" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ocean</a>. These results suggest that the combined effect of warming and deoxygenation will have profound and long-lasting impacts on the viability of marine ecosystems, well after global temperatures have peaked." <a href="https://www.nature.com/articles/s43247-023-01002-1" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.nature.com/articles/s43247-023-01002-1</a>- "Malgré la hausse des surfaces forestières, nos forêts meurent sous les assauts réguliers du changement climatique. D'après les derniers chiffres de l'IGN, une très forte hausse de la mortalité est constatée depuis 3 ans (+80%). Des dépérissements massifs sont enregistrés : 4,1% de la forêt française meurt. La mort silencieuse de nos écosystèmes devrait tous nous émouvoir." <a href="https://bird.makeup/users/sergezaka/statuses/1712550486803624366" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://bird.makeup/users/sergezaka/statuses/1712550486803624366</a>- Disparition de 90 % de la population de crabe des neiges. <a href="https://www.smithsonianmag.com/smart-news/why-10-billion-snow-crabs-disappeared-off-the-coast-of-alaska-180983112/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.smithsonianmag.com/smart-news/why-10-billion-snow-crabs-disappeared-off-the-coast-of-alaska-180983112/</a>- "L'Amazonie traverse actuellement une sécheresse historique avec un impact conséquent sur les écosystèmes" <a href="https://twitter.com/SergeZaka/status/1715637848630546607?t=8rJubHlttpu2oOYhq8WuRw&s=19" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://twitter.com/SergeZaka/status/1715637848630546607?t=8rJubHlttpu2oOYhq8WuRw&s=19</a>- Au Mexique, une vague d'extrême chaleur de 45°C en mai fait tomber les singes hurleurs (Alouatta palliata) comme des mouches. <a href="https://twitter.com/DrTOMontgomery/status/1792732356106764487?t=5wvfyzQ1yUq-yJ6SFRSODw&s=19" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://twitter.com/DrTOMontgomery/status/1792732356106764487?t=5wvfyzQ1yUq-yJ6SFRSODw&s=19</a>- "As Canada warms, infectious disease risks spread north" "cases of Lyme disease have now increased more than 1,000 per cent in a decade as the warming climate pushes the boundaries of a range of pathogens and risk factors northward" Via <a href="https://mastodon.social/@Snoro" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@Snoro</a> <a href="https://www.ctvnews.ca/mobile/climate-and-environment/as-canada-warms-infectious-disease-risks-spread-north-1.6901217" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.ctvnews.ca/mobile/climate-and-environment/as-canada-warms-infectious-disease-risks-spread-north-1.6901217</a>- Les rivières du Canada sont en train de... rouiller ?!! Le fer relâché par la fonte du permafrost désoxygène les rivières, les transformant en désert. <a href="https://youtu.be/sBFhsGAFIaw" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://youtu.be/sBFhsGAFIaw</a> via <a href="https://tywkiwdbi.blogspot.com/2024/05/the-orange-rivers-of-alaska.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tywkiwdbi.blogspot.com/2024/05/the-orange-rivers-of-alaska.html</a>- "Désormais 4 foyers de cas autochtones de <a href="https://eldritch.cafe/tags/dengue" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dengue</a> dans le sud de la France cette année, ainsi qu'un foyer de <a href="https://eldritch.cafe/tags/chikungunya" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#chikungunya</a> en Île-de-France. Par ailleurs, depuis le début de l'année, on a dépassé les 3 000 cas importés de <a href="https://eldritch.cafe/tags/dengue" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dengue</a> (bilan largement record). La majorité d'entre eux ont été contractés aux Antilles françaises (Martinique et Guadeloupe)." <a href="https://x.com/nicolasberrod/status/1824032051625972141?t=cO35Qwe_UldtudOxoqh8fQ&s=19" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://x.com/nicolasberrod/status/1824032051625972141?t=cO35Qwe_UldtudOxoqh8fQ&s=19</a>- La chaleur inhibe l'odorat des bourdons. <a href="https://www.science.org/content/article/bumble-bees-lose-their-sense-smell-after-heat-waves" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.science.org/content/article/bumble-bees-lose-their-sense-smell-after-heat-waves</a>

Knowledge Zone<a href="https://mstdn.social/tags/Terraforming" class="mention hashtag" rel="tag">#Terraforming</a> is the hypothetical process of modifying a <a href="https://mstdn.social/tags/Planet" class="mention hashtag" rel="tag">#Planet</a>, <a href="https://mstdn.social/tags/Moon" class="mention hashtag" rel="tag">#Moon</a>, or other celestial body to resemble Earth's environment, making it <a href="https://mstdn.social/tags/Habitable" class="mention hashtag" rel="tag">#Habitable</a> for humans and other Earth-like life forms. This concept, often explored in science fiction, has increasingly piqued the interest of scientists and engineers.<a href="https://knowledgezone.co.in/posts/What-is-Terraforming-62d64b1ae6ab639b214e2ebd" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://knowledgezone.co.in/posts/What-is-Terraforming-62d64b1ae6ab639b214e2ebd</a>

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