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@exoplanets.stefanbohacek.online.ap.brid.gySep 19, 2026, 10:19 AM

Name: HD 47366 b
A giant planet composed mainly of gas.
Distance from Earth: 275 light-years
Year discovered: 2016
Discovered by: Okayama Astrophysical Observatory
Planet mass: 731 Earths
Orbital period: 359.15 day(s)

https://eyes.nasa.gov/apps/exo/#/planet/HD_47366_b

#space #exoplanets

A computer-generated representation of the HD 47366 b exoplanet.
@janetinbluesky.bsky.socialSep 18, 2026, 8:01 PM

An array of researchers at @carnegiescience.bsky.social recently celebrated the 60th anniversary of Star Trek with an evening devoted to the science of Star Trek and their own work exploring the universe …

#astrobiology
#exoplanets

@cosmicoptics.zovintus.comSep 18, 2026, 6:31 PM

Meet GJ 876 d, a scorching super-Earth orbiting so close to its star that its iron-rich, rocky crust is relentlessly baked by extreme tidal forces.

#SuperEarth #Exoplanets #CosmicOptics
[Image by AI]

@alcornews.bsky.socialSep 18, 2026, 5:53 PM

#SIMP-0136 #méthode #décryptage #météo #futures #exoplanètes #method #decoding #weather #future #exoplanets

🌌🔭 🧪🔐 🌦️🪐 🔮🪐

media24.fr/2026/09/18/c...

@alcornews.mastodon.social.ap.brid.gySep 18, 2026, 5:53 PM

#SIMP-0136 #méthode #décryptage #météo #futures #exoplanètes #method #decoding #weather #future #exoplanets

🌌🔭 🧪🔐 🌦️🪐 🔮🪐

https://media24.fr/2026/09/18/ce-nest-ni-une-planete-ni-une-etoile-mais-simp-0136-vient-de-permettre-lelaboration-dune-methode-pour-decrypter-la-meteo-de-futures-exoplanetes/

@nplinnspace.bsky.socialSep 18, 2026, 4:32 PM

🔭 Really enjoyed stumbling over this paper, and in particular the sass of its title: Saturns Are Not Large Neptunes! Not every day we get a new flavour of #exoplanets — will definitely be using ”Saturnian” from now on 😊 cool work by @niamhk12.bsky.social and others! ✨🪐

arxiv.org/abs/2609.170...

Screenshot of the paper in the link of this post. The section that has been screenshotted is the first part of Section 5 - Conclusions. It reads as follows: 

5 CONCLUSIONS
In this paper we have presented an empirical mass-radius relation
fitted to a sub-sample of the PlanetS catalogue, where inflated giant
planetshave been excluded. Our main results are as follows:
•Weupdatethewell-knownirradiationthresholdforgiantplanet
inflation presented in Demory & Seager (2011), defining 𝑆thr =
99 S⊕, the irradiation below which 90% of giant planets have a
radius excess Δlog 𝑅 < 2𝜎.
•We fitted our mass-radius relation to nine versions of the
inflation-cleaned sample and find that in all cases, a breakpoint was
placedbetweenNeptuneandSaturn,whileineightoutofninethere
wasalsoabreakpoint betweenSaturn and Jupiter.
•Ourbest-fitmass-radiusrelationhasthreebreakpointsandfour
distinctsegments,oneofwhichcorrespondstoaregimeofSaturnian
planets. This newly defined regime is between 54.3 ±2.7 M⊕ <
𝑀 < 257.8 ±10.8 M⊕ and has a slope of 0.270 ±0.007, with a
corresponding radiusrange of 8.0 ±0.5 R⊕< 𝑅 < 12.2 ±0.5 R⊕.
•The lower slope of the Saturnian regime compared to the Nep-
tunian regime (0.668 ±0.007) is consistent with the increased im-
portance of electron degeneracy in hydrogen-rich interiors, and the
corresponding onsetof gravitationalself-compression.
@fediboard-science.bsky.socialSep 18, 2026, 9:47 AM

Elias 2-24 b has been confirmed as the youngest known planet in existence, at less than one million years old, giving scientists a rare opportunity to observe planetary formation while it is still act

#science #astronomy #exoplanets

@contenteditor.bsky.socialSep 18, 2026, 3:58 AM

Ανακαλύφθηκε ο νεότερος εξωπλανήτης που έχει εντοπιστεί ποτέ – Ο «νεογέννητος» Elias 2-24 b
#CEMedia #Exoplanets #press
contenteditor.substack.com/p/anakalyfth...

@stellarvisions.bsky.socialSep 18, 2026, 12:46 AM

Découvrez le système de Kepler-69, un voisin lointain de notre système solaire. 🌌✨

#Space #Exoplanets #Astronomy #Kepler #Comparison

Schéma comparatif du système Kepler-69 et du système solaire, montrant les orbites et tailles des planètes.
@lazarou.mastodon.social.ap.brid.gySep 17, 2026, 5:08 PM

"100,000 new exoplanets!" Dr Eamonn Kerins tells a very excited Bobby Friction on the 6 Music replay.

'All These Worlds' indeed, something to hold on for in these dark times.

Bobby then goes on to big up the movie Interstellar ....we are on the same wavelength I think!

#Exoplanets […]

@kllewellin.masto.ai.ap.brid.gySep 17, 2026, 3:24 PM

Newfound 'baby' planet smashes record for youngest known world https://phys.org/news/2026-09-newfound-baby-planet-youngest-world.html 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

@exoplanets.stefanbohacek.online.ap.brid.gySep 17, 2026, 4:18 AM

Name: Kepler-286 d
A potentially rocky world, larger than Earth.
Distance from Earth: 4,001 light-years
Year discovered: 2014
Discovered by: Kepler
Planet radius: 1.33 x Earth
Orbital period: 5.91 day(s)

https://eyes.nasa.gov/apps/exo/#/planet/Kepler-286_d

#space #exoplanets

A computer-generated representation of the Kepler-286 d exoplanet.
@cosmicoptics.zovintus.comSep 16, 2026, 10:09 PM

Meet WASP-121b, an egg-shaped ultra-hot Jupiter with extreme stratospheric temperatures and a blistering 30-hour orbit. Explore the wild physics of this extreme alien world!
#Exoplanets #WASP121b #CosmicOptics
[Image by AI]

@climatebook.bsky.socialSep 16, 2026, 4:10 PM

#exoplanets An exoplanet terminology question: How do people feel about the term "synodic day"? I'm cleaning up the terminology in my planetary climate book for the second edition, eliminating Solar-System specific terminology

@profabelmendez.bsky.socialSep 16, 2026, 1:08 PM

#AreciboWow team member Kevin N. Ortiz-Ceballos is the lead scientist of the team that achieved the first direct detection of auroral radio emission from an exoplanet. #RadioAstronomy #Exoplanets

Photo, no description
@planetremco.bsky.socialSep 16, 2026, 6:37 AM

First radio emission detection for an exoplanet? Interpreted as aurora (and hence a magnetic field for the planet).
Ortiz Ceballos+ arxiv.org/abs/2609.16720
🧪🔭 #exoplanets

@knowledgezone.bsky.socialSep 16, 2026, 6:26 AM

#Discovered or #Invented? The great #Mystery of #Mathematics : Medium

Super-Speed #AI Helps #Astronomers Find Cosmic Trove Of New #Exoplanets : Forbes

#Birds’ #Flying ‘V’ formation saves #Energy with flatter flaps, new research shows : Misc

#KnowledgeLinks

knowledgezone.co.in/resources/bo...

Photo, no descriptionPhoto, no description
@bowieseminar.bsky.socialSep 16, 2026, 5:52 AM

If you want to read more about limb asymmetries, Cathal and collaborators now have a paper on some of things he discussed in his talk accepted to ApJL and up on arXiv. #exoplanets #astronomy

arxiv.org/abs/2609.16834

@spaceflight.spacey.space.ap.brid.gySep 15, 2026, 11:37 PM

RE: https://mastodon.social/@setiinstitute/117277540479596986

#SETI was long dismissed and received little funding. That changed as the discovery of #exoplanets 🪐 made the search for life more credible. SETI now connects with mainstream research into habitability, the origins of life and […]

@logidias.bsky.socialSep 15, 2026, 8:07 PM

What if the key to finding Earth's twin isn't one giant eye, but 26? 🤯 Europe just unleashed a 'monster' telescope defying all design rules to scan hundreds of thousands of stars simultaneously. Are we finally about to find our cosmic mirror? 👇 #Exoplanets #Space

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