#astrodon — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #astrodon, aggregated by home.social.
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Accepted in A&A, work by Mara Attia tackles a core problem in exoplanet interiors: "PALEOS: Multiphase equations of state and mass-radius relations for exoplanet interiors". 🌍
Read the paper: https://arxiv.org/abs/2605.03741
Measure an exoplanet's mass and radius and you get its density, usually read as composition: how much iron, how much rock, how much water. That reading assumes the inside is cold and solid.
Heat it and the rock expands. For low-mass silicate planets the radius grows by more than 1% above 1500 K, and by up to 16% at 4000 K. That is as large as the spread from changing the bulk composition, and as large as the typical transit radius uncertainty. 🌋
So the same mass and radius can be two different planets. We show it for WASP-47 e and TOI-1807 b: each admits two purely rocky solutions, identical in mass and radius, one solid, one with a deep magma ocean on a liquid iron core.
Images: (1) Mara Attia. (2) Abstract. (3) Core size vs interior temp (measured radius as contour, solutions A and B). (4) Mass-radius curves at four temps.
Behind it is PALEOS, an open toolkit covering 17 phases, checked against Earth to 0.3%. Grid and tables are public: https://github.com/maraattia/PALEOS
A point on the mass-radius diagram is not an interior until you know the temperature. 🔭
With @timlichtenberg, Ema Jungová and Mariana Sastre.
#Exoplanets #PlanetaryScience #Astronomy #Astrodon #OpenScience
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“...to explore strange new worlds; to seek out new life and new civilizations; to boldly go where no man has gone before!”
Happy #StarTrekDay! 🖖🏼
(Found a neat Star Trek infographic from 2010 designed by Ricky Linn)
#StarTrek #StarTrek60 #ScienceFiction #SciFi #Space #Astrodon #Shows #TV #Movies #Films #Series
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“...to explore strange new worlds; to seek out new life and new civilizations; to boldly go where no man has gone before!”
Happy #StarTrekDay! 🖖🏼
(Found a neat Star Trek infographic from 2010 designed by Ricky Linn)
#StarTrek #StarTrek60 #ScienceFiction #SciFi #Space #Astrodon #Shows #TV #Movies #Films #Series
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“...to explore strange new worlds; to seek out new life and new civilizations; to boldly go where no man has gone before!”
Happy #StarTrekDay! 🖖🏼
(Found a neat Star Trek infographic from 2010 designed by Ricky Linn)
#StarTrek #StarTrek60 #ScienceFiction #SciFi #Space #Astrodon #Shows #TV #Movies #Films #Series
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“...to explore strange new worlds; to seek out new life and new civilizations; to boldly go where no man has gone before!”
Happy #StarTrekDay! 🖖🏼
(Found a neat Star Trek infographic from 2010 designed by Ricky Linn)
#StarTrek #StarTrek60 #ScienceFiction #SciFi #Space #Astrodon #Shows #TV #Movies #Films #Series
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“...to explore strange new worlds; to seek out new life and new civilizations; to boldly go where no man has gone before!”
Happy #StarTrekDay! 🖖🏼
(Found a neat Star Trek infographic from 2010 designed by Ricky Linn)
#StarTrek #StarTrek60 #ScienceFiction #SciFi #Space #Astrodon #Shows #TV #Movies #Films #Series
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The happineas when your PhD student gives an amazing talk at a conference 🥳 🥳 🥳
(And gets a lot of questions from senior folks in the community that he deals with well 💚)
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Neptune Clouds on the Dark Spot
This photo was taken by NASA Voyager 2 wide-angle camera. Light at methane wavelengths is mostly absorbed in the deeper atmosphere. The bright, white feature is a high-altitude cloud just south of the Great Dark Spot.
More: https://images.nasa.gov/details/PIA02222
Credit: NASA/JPL#neptune #voyager #astrodon #astronomy #astrophotography #astrophysics
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Griechenland hat im Mai 2026 das weltweit erste nationale Satellitensystem zur Waldbrandüberwachung gestartet. Vier Kleinsatelliten mit Münchner Technologie erkennen Brände ab 4 × 4 Metern Größe und liefern nahezu Echtzeitdaten zur Brandbekämpfung.
➡️ https://www.riffreporter.de/de/technik/griechenland-satelliten-waldbrandueberwaschung
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Griechenland hat im Mai 2026 das weltweit erste nationale Satellitensystem zur Waldbrandüberwachung gestartet. Vier Kleinsatelliten mit Münchner Technologie erkennen Brände ab 4 × 4 Metern Größe und liefern nahezu Echtzeitdaten zur Brandbekämpfung.
➡️ https://www.riffreporter.de/de/technik/griechenland-satelliten-waldbrandueberwaschung
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Griechenland hat im Mai 2026 das weltweit erste nationale Satellitensystem zur Waldbrandüberwachung gestartet. Vier Kleinsatelliten mit Münchner Technologie erkennen Brände ab 4 × 4 Metern Größe und liefern nahezu Echtzeitdaten zur Brandbekämpfung.
➡️ https://www.riffreporter.de/de/technik/griechenland-satelliten-waldbrandueberwaschung
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Griechenland hat im Mai 2026 das weltweit erste nationale Satellitensystem zur Waldbrandüberwachung gestartet. Vier Kleinsatelliten mit Münchner Technologie erkennen Brände ab 4 × 4 Metern Größe und liefern nahezu Echtzeitdaten zur Brandbekämpfung.
➡️ https://www.riffreporter.de/de/technik/griechenland-satelliten-waldbrandueberwaschung
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Griechenland hat im Mai 2026 das weltweit erste nationale Satellitensystem zur Waldbrandüberwachung gestartet. Vier Kleinsatelliten mit Münchner Technologie erkennen Brände ab 4 × 4 Metern Größe und liefern nahezu Echtzeitdaten zur Brandbekämpfung.
➡️ https://www.riffreporter.de/de/technik/griechenland-satelliten-waldbrandueberwaschung
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Posts under the #ag2026garching conference hashtag are starting to come in, follow the hashtag for the latest in astronomy!
Or tag along on this particularly convenient fediwall view: https://fediwall.social/?servers=mastodon.social,scicomm.xyz,wisskomm.social,fedi.buzz&tags=ag2026garching,ag2026&[email protected]&lang=en,de&hide=nsfw,bots&title=AG+2026+Garching
Here's hoping that we here on the fediverse will be simultaneously able to
- show the live posters from the conference how much we appreciate that they're keeping us informed
- communicate that we really appreciate ALT text and would love to have it on all their posts with media attached#ag2026garching #astrodon #astronomy #astrophysics #fediwall
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Posts under the #ag2026garching conference hashtag are starting to come in, follow the hashtag for the latest in astronomy!
Or tag along on this particularly convenient fediwall view: https://fediwall.social/?servers=mastodon.social,scicomm.xyz,wisskomm.social,fedi.buzz&tags=ag2026garching,ag2026&[email protected]&lang=en,de&hide=nsfw,bots&title=AG+2026+Garching
Here's hoping that we here on the fediverse will be simultaneously able to
- show the live posters from the conference how much we appreciate that they're keeping us informed
- communicate that we really appreciate ALT text and would love to have it on all their posts with media attached#ag2026garching #astrodon #astronomy #astrophysics #fediwall
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Posts under the #ag2026garching conference hashtag are starting to come in, follow the hashtag for the latest in astronomy!
Or tag along on this particularly convenient fediwall view: https://fediwall.social/?servers=mastodon.social,scicomm.xyz,wisskomm.social,fedi.buzz&tags=ag2026garching,ag2026&[email protected]&lang=en,de&hide=nsfw,bots&title=AG+2026+Garching
Here's hoping that we here on the fediverse will be simultaneously able to
- show the live posters from the conference how much we appreciate that they're keeping us informed
- communicate that we really appreciate ALT text and would love to have it on all their posts with media attached#ag2026garching #astrodon #astronomy #astrophysics #fediwall
-
Posts under the #ag2026garching conference hashtag are starting to come in, follow the hashtag for the latest in astronomy!
Or tag along on this particularly convenient fediwall view: https://fediwall.social/?servers=mastodon.social,scicomm.xyz,wisskomm.social,fedi.buzz&tags=ag2026garching,ag2026&[email protected]&lang=en,de&hide=nsfw,bots&title=AG+2026+Garching
Here's hoping that we here on the fediverse will be simultaneously able to
- show the live posters from the conference how much we appreciate that they're keeping us informed
- communicate that we really appreciate ALT text and would love to have it on all their posts with media attached#ag2026garching #astrodon #astronomy #astrophysics #fediwall
-
Posts under the #ag2026garching conference hashtag are starting to come in, follow the hashtag for the latest in astronomy!
Or tag along on this particularly convenient fediwall view: https://fediwall.social/?servers=mastodon.social,scicomm.xyz,wisskomm.social,fedi.buzz&tags=ag2026garching,ag2026&[email protected]&lang=en,de&hide=nsfw,bots&title=AG+2026+Garching
Here's hoping that we here on the fediverse will be simultaneously able to
- show the live posters from the conference how much we appreciate that they're keeping us informed
- communicate that we really appreciate ALT text and would love to have it on all their posts with media attached#ag2026garching #astrodon #astronomy #astrophysics #fediwall
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@cosmos4u Are you aware of the Peertube instance https://solarsystem.video/? With accounts such as
@planetary_research_media
@europlanet_media
@ipgp_planets
@issi_media
@openplanetary
@planetary_research
@lightcurvefilmsforesa
@lightcurvefilmsand many more, all part of the Fediverse that you can follow directly from your Mastodon account?
Discover https://solarsystem.video/videos/overview
and browse https://solarsystem.video/videos/browseOh, and your quoted video (which lives on a Pixelfed instance) works just fine too of course 😊
#video #peertube #fediverse #astrodon #astronomy #astrophysics #planetaryscience #feditips
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@cosmos4u Are you aware of the Peertube instance https://solarsystem.video/? With accounts such as
@planetary_research_media
@europlanet_media
@ipgp_planets
@issi_media
@openplanetary
@planetary_research
@lightcurvefilmsforesa
@lightcurvefilmsand many more, all part of the Fediverse that you can follow directly from your Mastodon account?
Discover https://solarsystem.video/videos/overview
and browse https://solarsystem.video/videos/browseOh, and your quoted video (which lives on a Pixelfed instance) works just fine too of course 😊
#video #peertube #fediverse #astrodon #astronomy #astrophysics #planetaryscience #feditips
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@cosmos4u Are you aware of the Peertube instance https://solarsystem.video/? With accounts such as
@planetary_research_media
@europlanet_media
@ipgp_planets
@issi_media
@openplanetary
@planetary_research
@lightcurvefilmsforesa
@lightcurvefilmsand many more, all part of the Fediverse that you can follow directly from your Mastodon account?
Discover https://solarsystem.video/videos/overview
and browse https://solarsystem.video/videos/browseOh, and your quoted video (which lives on a Pixelfed instance) works just fine too of course 😊
#video #peertube #fediverse #astrodon #astronomy #astrophysics #planetaryscience #feditips
-
@cosmos4u Are you aware of the Peertube instance https://solarsystem.video/? With accounts such as
@planetary_research_media
@europlanet_media
@ipgp_planets
@issi_media
@openplanetary
@planetary_research
@lightcurvefilmsforesa
@lightcurvefilmsand many more, all part of the Fediverse that you can follow directly from your Mastodon account?
Discover https://solarsystem.video/videos/overview
and browse https://solarsystem.video/videos/browseOh, and your quoted video (which lives on a Pixelfed instance) works just fine too of course 😊
#video #peertube #fediverse #astrodon #astronomy #astrophysics #planetaryscience #feditips
-
@cosmos4u Are you aware of the Peertube instance https://solarsystem.video/? With accounts such as
@planetary_research_media
@europlanet_media
@ipgp_planets
@issi_media
@openplanetary
@planetary_research
@lightcurvefilmsforesa
@lightcurvefilmsand many more, all part of the Fediverse that you can follow directly from your Mastodon account?
Discover https://solarsystem.video/videos/overview
and browse https://solarsystem.video/videos/browseOh, and your quoted video (which lives on a Pixelfed instance) works just fine too of course 😊
#video #peertube #fediverse #astrodon #astronomy #astrophysics #planetaryscience #feditips
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The weather forecast lied, it was not in fact clear overnight. However, I did still pick up a few targets.
🦐 The Prawn Nebula
☄️ 220P McNaught
☄️ 10P Tempel -
The weather forecast lied, it was not in fact clear overnight. However, I did still pick up a few targets.
🦐 The Prawn Nebula
☄️ 220P McNaught
☄️ 10P Tempel -
The weather forecast lied, it was not in fact clear overnight. However, I did still pick up a few targets.
🦐 The Prawn Nebula
☄️ 220P McNaught
☄️ 10P Tempel -
The weather forecast lied, it was not in fact clear overnight. However, I did still pick up a few targets.
🦐 The Prawn Nebula
☄️ 220P McNaught
☄️ 10P Tempel -
The weather forecast lied, it was not in fact clear overnight. However, I did still pick up a few targets.
🦐 The Prawn Nebula
☄️ 220P McNaught
☄️ 10P Tempel -
The Mountainous Shoreline of Sputnik Planum
In this highest-resolution image from NASA's New Horizons spacecraft, great blocks of Pluto's water-ice crust appear jammed together in the informally named al-Idrisi mountains. Some mountain sides appear coated in dark material, while other sides ...
More: https://images.nasa.gov/details/PIA20198
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute#pluto #newhorizons #astrodon #astronomy #astrophotography #astrophysics
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The Mountainous Shoreline of Sputnik Planum
In this highest-resolution image from NASA's New Horizons spacecraft, great blocks of Pluto's water-ice crust appear jammed together in the informally named al-Idrisi mountains. Some mountain sides appear coated in dark material, while other sides ...
More: https://images.nasa.gov/details/PIA20198
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute#pluto #newhorizons #astrodon #astronomy #astrophotography #astrophysics
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Charon in Enhanced Color
NASA's New Horizons captured this high-resolution enhanced color view of Charon just before closest approach on July 14, 2015. The image combines blue, red and infrared images taken by the spacecraft's Ralph/Multispectral Visual Imaging Camera (MVIC); the colors are...
More: https://images.nasa.gov/details/PIA19968
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute#charon #newhorizons #astrodon #astronomy #astrophotography #astrophysics
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I just joined a group of people to share the costs of hosting telescopes at a remote observatory. Having access to Bortle 1 skies makes such a difference ...
Just finished editing a two-panel mosaic of NGC 7000. 28h total exposure time. It would've taken me like 5x the amount of time to achieve the same exact details from home.
Full details here: https://app.astrobin.com/i/0yao70
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I just joined a group of people to share the costs of hosting telescopes at a remote observatory. Having access to Bortle 1 skies makes such a difference ...
Just finished editing a two-panel mosaic of NGC 7000. 28h total exposure time. It would've taken me like 5x the amount of time to achieve the same exact details from home.
Full details here: https://app.astrobin.com/i/0yao70
-
I just joined a group of people to share the costs of hosting telescopes at a remote observatory. Having access to Bortle 1 skies makes such a difference ...
Just finished editing a two-panel mosaic of NGC 7000. 28h total exposure time. It would've taken me like 5x the amount of time to achieve the same exact details from home.
Full details here: https://app.astrobin.com/i/0yao70
-
I just joined a group of people to share the costs of hosting telescopes at a remote observatory. Having access to Bortle 1 skies makes such a difference ...
Just finished editing a two-panel mosaic of NGC 7000. 28h total exposure time. It would've taken me like 5x the amount of time to achieve the same exact details from home.
Full details here: https://app.astrobin.com/i/0yao70
-
I just joined a group of people to share the costs of hosting telescopes at a remote observatory. Having access to Bortle 1 skies makes such a difference ...
Just finished editing a two-panel mosaic of NGC 7000. 28h total exposure time. It would've taken me like 5x the amount of time to achieve the same exact details from home.
Full details here: https://app.astrobin.com/i/0yao70
-
Dark Moon, Dramatic Plume
Below a darkened Enceladus, a plume of water ice is backlit in this view of one of Saturn most dramatic moons. This image was captured by NASA Cassini spacecraft.
More: https://images.nasa.gov/details/PIA14599
Credit: NASA/JPL-Caltech/Space Science Institute#enceladus #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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Dark Moon, Dramatic Plume
Below a darkened Enceladus, a plume of water ice is backlit in this view of one of Saturn most dramatic moons. This image was captured by NASA Cassini spacecraft.
More: https://images.nasa.gov/details/PIA14599
Credit: NASA/JPL-Caltech/Space Science Institute#enceladus #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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Dark Moon, Dramatic Plume
Below a darkened Enceladus, a plume of water ice is backlit in this view of one of Saturn most dramatic moons. This image was captured by NASA Cassini spacecraft.
More: https://images.nasa.gov/details/PIA14599
Credit: NASA/JPL-Caltech/Space Science Institute#enceladus #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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Dark Moon, Dramatic Plume
Below a darkened Enceladus, a plume of water ice is backlit in this view of one of Saturn most dramatic moons. This image was captured by NASA Cassini spacecraft.
More: https://images.nasa.gov/details/PIA14599
Credit: NASA/JPL-Caltech/Space Science Institute#enceladus #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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Dark Moon, Dramatic Plume
Below a darkened Enceladus, a plume of water ice is backlit in this view of one of Saturn most dramatic moons. This image was captured by NASA Cassini spacecraft.
More: https://images.nasa.gov/details/PIA14599
Credit: NASA/JPL-Caltech/Space Science Institute#enceladus #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics
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Welche Sternbilder sehe ich im September? Wo stehen die Planeten? Wie groß ist die Andromedagalaxie am Himmel, und wann beginnt der Herbst? Unser Beobachtungsguide für Sterngucker:
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Welche Sternbilder sehe ich im September? Wo stehen die Planeten? Wie groß ist die Andromedagalaxie am Himmel, und wann beginnt der Herbst? Unser Beobachtungsguide für Sterngucker:
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Welche Sternbilder sehe ich im September? Wo stehen die Planeten? Wie groß ist die Andromedagalaxie am Himmel, und wann beginnt der Herbst? Unser Beobachtungsguide für Sterngucker:
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Welche Sternbilder sehe ich im September? Wo stehen die Planeten? Wie groß ist die Andromedagalaxie am Himmel, und wann beginnt der Herbst? Unser Beobachtungsguide für Sterngucker:
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Welche Sternbilder sehe ich im September? Wo stehen die Planeten? Wie groß ist die Andromedagalaxie am Himmel, und wann beginnt der Herbst? Unser Beobachtungsguide für Sterngucker:
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Here we have NGC 5882 -- a planetary nebula!
Although this isn't the planetary nebula we discussed in this week's episode on the #astronomy of the #constellation Lupus: ( listen here: https://starrytimepodcast.podbean.com/e/lupus-cosmic-background/), it's still a beauty!!!
📷 :https://esahubble.org/images/potw1114a/
#Lupus #Astrophotography #Hubble #ESA #NASA #PlanetaryNebula #space #science #astrodon
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Here we have NGC 5882 -- a planetary nebula!
Although this isn't the planetary nebula we discussed in this week's episode on the #astronomy of the #constellation Lupus: ( listen here: https://starrytimepodcast.podbean.com/e/lupus-cosmic-background/), it's still a beauty!!!
📷 :https://esahubble.org/images/potw1114a/
#Lupus #Astrophotography #Hubble #ESA #NASA #PlanetaryNebula #space #science #astrodon
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Here we have NGC 5882 -- a planetary nebula!
Although this isn't the planetary nebula we discussed in this week's episode on the #astronomy of the #constellation Lupus: ( listen here: https://starrytimepodcast.podbean.com/e/lupus-cosmic-background/), it's still a beauty!!!
📷 :https://esahubble.org/images/potw1114a/
#Lupus #Astrophotography #Hubble #ESA #NASA #PlanetaryNebula #space #science #astrodon
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Here we have NGC 5882 -- a planetary nebula!
Although this isn't the planetary nebula we discussed in this week's episode on the #astronomy of the #constellation Lupus: ( listen here: https://starrytimepodcast.podbean.com/e/lupus-cosmic-background/), it's still a beauty!!!
📷 :https://esahubble.org/images/potw1114a/
#Lupus #Astrophotography #Hubble #ESA #NASA #PlanetaryNebula #space #science #astrodon