#exoplanet — Public Fediverse posts

NASA's Nancy Grace Roman Space Telescope: Official Mission Trailer

#DarkEnergy #DarkMatter #Exoplanet #NancyGraceRomanSpaceTelescope #Trailer

▶️ 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/File:NASA%27s_Nancy_Grace_Roman_Space_Telescope-_Official_Mission_Trailer_%28SVS15081-_Roman_Mission_Trailer_-_Long%29.webm

Significance of Nancy Grace Roman Space Telescope

#Coronagraph #DarkEnergy #DarkMatter #Exoplanet #HubbleSpaceTelescope #JamesWebb #JamesWebbSpaceTelescope #JWST #NancyGraceRoman #NancyGraceRomanSpaceTelescope #NGRST #NASA #Roman #RomanTelescope #WFI #WideFieldInstrument

https://www.scientificeuropean.co.uk/sciences/space/significance-of-nancy-grace-roman-space-telescope/

White Paper Makes the Case for a European Exoplanet Interferometer

Like and share if you enjoyed this.

https://1ban.news/life-mission-exoplanet-atmospheres/

#1ban #life #mission #exoplanet #atmospheres #space

RE: https://mastodon.social/@proseandpassion/116935425709917770

Where in #space can #planets with #atmospheres be found? C. Cherubim et al. (2026) used #nearinfraredspectroscopy to characterize a #rocky #exoplanet orbiting its host star within the #habitablezone. Planet #LHS1140b exhibits #helium #absorption in its atmosphere, a feature the authors attribute to a helium-dominated #upperatmosphericlayer.

© #StefanFWirth, July 2026, Berlin

Reference
C. Cherubim et al. (2026)
https://doi.org/10.1126/science.aea9708

16-Jul-2026
Detected: Rocky, habitable-zone #exoplanet with an #atmosphere
A team of astronomers has detected evidence of an atmosphere on a rocky planet orbiting in the habitable zone of its host star.

^^exciting #astrobiology news

https://www.eurekalert.org/news-releases/1135989

#science #rockyPlanets

#NASA's upcoming Nancy Grace #Roman #SpaceTelescope will continue to expand #exoplanet science . That telescope is slated to launch no earlier than early 📆 September 2026 https://www.space.com/science/astrophysics/scientists-found-10-000-possible-exoplanets-hiding-in-nasa-data

The cosmic shoreline concept was introduced to separate #planets with #atmospheres from those without, by relating the cumulative X-ray and extreme-ultraviolet (XUV) instellation to the planetary escape velocity, using the Solar System planets to anchor the empirical relation.

The #exoplanet community has since attempted to refine the cosmic shoreline to provide a consistent ranking or prioritisation tool for exoplanet observations – i.e., to quickly identify which small #planets are most likely to have retained an #atmosphere.

In a new paper, astronomers use an empirical approach to refine the cosmic shoreline concept.

The Empirical Exoplanet Cosmic Shoreline (EECS) exhibits a significantly steeper slope than previously theorized, while consistently categorising Solar System moons and dwarf planets according to their atmospheric properties.

Applied to planets orbiting M dwarfs, the EECS suggests that a larger fraction retain atmospheres than predicted by classical models, but incorporating revised XUV fluence histories for low-mass M dwarfs reveals severe atmospheric vulnerability.

#astronomy #astrobiology
https://astrobiology.com/2026/06/an-empirical-determination-of-the-cosmic-shoreline-2.html

Paper by Meni-Gallardo & Pallé (2026):
https://arxiv.org/abs/2508.12865

🌍☀️ Scientists at #ArizonaState and #Caltech used the #JWST to produce the first weather report for WASP-94A b, a gas giant 700 light-years from #Earth.

The #planet has two different #weather sides: a morning edge with #clouds made of vaporized #rock and an almost cloud-free evening edge, driven by temperature differences and powerful winds.

👉 https://www.scientificamerican.com/article/jwst-sees-partly-cloudy-skies-on-a-distant-giant-exoplanet/

#exoplanet #space #nasa #astronomy #wasp94ab #science #telescope #atmosphere #spectroscopy

#DerStandard:
"
Wie findet man Leben auf weit entfernten Planeten?
"
"In der Atmosphäre von Exoplaneten wird eifrig nach Hinweisen auf außerirdisches Leben gesucht. Eine neue Generation von Weltraumteleskopen könnte in dieser Hinsicht für Überraschungen sorgen"

https://www.derstandard.at/story/3000000315256/wie-findet-man-leben-auf-weit-entfernten-planeten

15.4.2026

#Astronomie #DEPFET #Exoplanet #HD137010b #Leben #Raumfahrt #RNDR #SpaceFlight #Weltraumteleskop

#UniBE:
"
Zwischen ewiger Nacht und ewigem Tag: Klimakarten zweier Erdverwandter
"
"Mit Hilfe des .. JWST ist es einem internationalen Team mit Beteiligung der Universität Bern, der Universität Genf sowie des ..NFS PlanetS gelungen, detaillierte Klimakarten von zwei felsigen Exoplaneten mit erdähnlicher Masse zu erstellen .."

https://mediarelations.unibe.ch/medienmitteilungen/2026/medienmitteilungen_2026/zwischen_ewiger_nacht_und_ewigem_tag_klimakarten_zweier_erdverwandter/index_ger.html

13.4.2026

#Astronomie #Atmosphäre #Bern #Exoplanet #Gezeiten #JWST #Klima #PlanetS #Schweiz #TRAPPIST1 #TRAPPIST1b #TRAPPIST1c #Weltraumteleskop

Here is a problem that has been quietly gnawing at astronomers for decades.

The standard approach to detecting #life on other worlds involves scanning #exoplanet #atmospheres for #oxygen, #methane, and #ozone, whose presence is difficult to explain without #biology.

It's a clever idea, but it carries a hidden flaw. That entire shopping list was written by studying Earth. It is, inevitably, a search for life like us.

The list of ways that #chemistry alone can accidentally mimic these #biosignature gases is growing faster than the list of new ways to detect life.

Each new false positive scenario demands even more information about the #planet to rule it out, and there is a genuine question about whether that information can ever be gathered exhaustively.

But there is a solution.

#Assembly theory doesn't ask what #molecules are present in an #atmosphere. Instead, it asks how hard they were to make.

Every molecule can be assigned an assembly index, a minimum number of construction steps required to build it from basic #chemical building blocks.

Simple molecules are easy to assemble by chance, but truly complex ones, requiring many sequential steps, don't arise without something doing a great deal of deliberate selection.

That something would then be life itself.

#astrobiology #astronomy
https://phys.org/news/2026-03-life.html

Paper by Walker et al. (2026): https://arxiv.org/abs/2603.11086

We live in a very exciting time: answers to some of the oldest questions humanity has conceived are within our grasp.

One of these is whether #Earth is the only place that harbours #life.

In the last 30 years, the question of whether the Sun is unique in hosting a planetary system has been resoundingly answered: we now know of thousands of #exoplanets orbiting other #stars.

But can we use telescopes to detect whether any of these distant worlds also harbour life?

A promising method is to analyse the gases present in the #atmospheres of these #planets.

Astonishingly, we can identify #molecules present in the atmospheres of exoplanets.

Quantum mechanics causes each atmospheric chemical to have its own distinct barcode-like pattern, which it leaves on the light passing through it.

By collecting starlight that has been filtered through an #exoplanet’s atmosphere, telescopes can see the barcodes of the molecules making up that atmosphere.

To take advantage of this, the planet needs to #transit – pass in front of – the star from our point of view.

#astronomy #astrobiology
https://theconversation.com/how-astronomers-plan-to-detect-the-signatures-of-alien-life-in-the-atmospheres-of-distant-planets-272821

What #Scientists Found Moving Under The #Appalachians : Medium

#Scientists #Discover ‘#BlackWidow’ #Exoplanet That Defies Explanation: Misc

Long live the #Aeonophiles! : Misc

Latest #KnowledgeLinks

https://knowledgezone.co.in/resources/bookmarks

#AIP:
"
Exoplanet entfacht stellares Feuerwerk
"
"
Beobachtungen zeigen, wie ein Planet Eruptionen auf seinem Mutterstern verursacht. Die im Fachjournal Nature veröffentlichte Entdeckung liefert neue Erkenntnisse, wie Planeten und Sterne miteinander interagieren und sich gemeinsam entwickeln. ..
"
https://www.aip.de/de/news/stellar-fireworks/

2.7.2025

#Astronomie #ASTRON #CHEOPS #ESA #Exoplanet #HIP67522 #JWST #Magnetfeld #NASA #Stern #TESS #Weltraumteleskop

exoplanet files: ice moon beacon

#IcyLandscape #GeometricDesign #ReflectiveSurfaces #Exoplanet #IceMoon #MinimalisticSetting #ColdAtmosphere #BlueHues #SciFiBeacon
#Img2Img #AiArt #AiArtists #StableDiffusion #AiArtCommunity

on stuff: https://aieris.art/featured/exoplanet-files-ice-moon-beacon-eris-and-ai.html

exoplanet files: ice moon beacon

#IcyLandscape #GeometricDesign #ReflectiveSurfaces #Exoplanet #IceMoon #MinimalisticSetting #ColdAtmosphere #BlueHues #SciFiBeacon
#Img2Img #AiArt #AiArtists #StableDiffusion #AiArtCommunity

on stuff: https://aieris.art/featured/exoplanet-files-ice-moon-beacon-eris-and-ai.html

exoplanet files: ice moon beacon

#IcyLandscape #GeometricDesign #ReflectiveSurfaces #Exoplanet #IceMoon #MinimalisticSetting #ColdAtmosphere #BlueHues #SciFiBeacon
#Img2Img #AiArt #AiArtists #StableDiffusion #AiArtCommunity

on stuff: https://aieris.art/featured/exoplanet-files-ice-moon-beacon-eris-and-ai.html

exoplanet files: ice moon beacon

#IcyLandscape #GeometricDesign #ReflectiveSurfaces #Exoplanet #IceMoon #MinimalisticSetting #ColdAtmosphere #BlueHues #SciFiBeacon
#Img2Img #AiArt #AiArtists #StableDiffusion #AiArtCommunity

on stuff: https://aieris.art/featured/exoplanet-files-ice-moon-beacon-eris-and-ai.html

exoplanet files: ice moon beacon

#IcyLandscape #GeometricDesign #ReflectiveSurfaces #Exoplanet #IceMoon #MinimalisticSetting #ColdAtmosphere #BlueHues #SciFiBeacon
#Img2Img #AiArt #AiArtists #StableDiffusion #AiArtCommunity

on stuff: https://aieris.art/featured/exoplanet-files-ice-moon-beacon-eris-and-ai.html

Nur 0,059 Gramm pro Kubikzentimeter beträgt die mittlere Dichte des neuentdeckten Exoplaneten WASP-193b, wodurch diese Welt zu den Leichtgewichten zählt.

Nur 0,059 Gramm pro Kubikzentimeter beträgt die mittlere Dichte des neu entdeckten Exoplaneten WASP-193b, wodurch diese Welt zu den Leichtgewichten zählt.#Exoplanet #HeißerJupiter #ExtrasolarerPlanet #Zwergstern #RoterZwerg #Planetenentstehung #Astronomie
Eine Welt wie ein Wattebausch

#spaceart #astroart

Chemical Soups Around Cool Stars

This artist's conception shows a young, hypothetical planet around a cool star. A soupy mix of potentially life-forming chemicals can be seen pooling around the base of the jagged rocks.

https://www.jpl.nasa.gov/images/pia11980-chemical-soups-around-cool-stars-artist-concept

#space #art #astronomy #astrophysics #astrodon #planet #exoplanet #star #coolstar #chemistry #prebiotic #molecule #hydrogen #cyanide #hydrogencyanide #life #chemicals #soup #soups #pond #meteorites #NASA #Spitzer #SpaceTelescope

The Skeptics Guide #950 - Sep 23 2023
THE SKEPTICS' GUIDE TO THE UNIVERSE ⋅ News Items: CAR-T Therapy, Martian Life, Oldest Wooden Structure, Mexican Alien Bodies, Signature of Life Found on Exoplanet; Who's That Noisy; Science or Fiction - https://overcast.fm/+LcDB2n3hw #SGU #SkepticsGuide #exoplanet #MexicanAliens #MartianLife #ScienceOrFiction #science #skepticism #ScientificSkepticism

🤗🥳We are very happy to announce that Frank Eisenhauer starts as a new Director at #MPE! With #SINFONI, #GRAVITY & #GRAVITY+, Eisenhauer is building first-class instruments which led to outstanding results in #BlackHole, #GalacticCenter, #Exoplanet & #GalaxyFormation science!
➡https://www.mpe.mpg.de/7948075/news20230515

Long article on the combined #exoplanet hunting method from the previous post in the thread: https://www.expressnews.com/business/article/hunting-planets-san-antonio-astrophysicist-uses-18090895.php - the first author "says combining #astrometry and direct imaging strategies should lead to the discovery of more exoplanets — and he’s already been reviewing data from #Gaia and Hipparcos to get a bead on more catalogued stars with orbiting companions."

"HIP 99770 b is the first #exoplanet ever discovered jointly through direct imaging and #astrometry and the first discovery leveraging on μ-arcsecond precision #Gaia astrometry": https://arxiv.org/abs/2212.00034

A detection of a superjovian #exoplanet around the dusty A star HIP 99770 using precision #astrometry and direct imaging.

The #planet HIP 99770 b is in a low-eccentricity orbit 16.9 au from the primary, receiving about as much light as #Jupiter does from the Sun.

This discovery is a proof-of-concept for a fundamentally new strategy for finding imageable planets: selecting targets based on dynamical evidence from indirect methods like astrometry.

#astronomy #exoplanets https://arxiv.org/abs/2212.00034