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Rocky Worlds Meetings

@rockyworlds.bsky.social
450 followers 252 following 53 posts

Monthly online seminars on all topics related to rocky planets & #exoplanets from chemistry to geology to astrophysics ☄️🧪🔭🪐🌍🌟 Sign up & more info: rockyworlds.org Watch previous talks: www.youtube.com/@rockyworlds

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Rocky Worlds Meetings @rockyworlds.bsky.social · 28/09/2026
To understand rocky planet formation, we need to seek out the solar systems that break all our rules 🤘🪐 At the next #RockyWorldsDiscussion, Thu 1 Oct @ 13:00 UTC, Tom Wilson will present one such rebel, LHS 1903, and what it says about planet compositions More: rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Tom Wilson. He is slightly smiling into the camera. He has brown hair and is wearing a brown shirt, in front of a white background.Artist's depiction of the LHS 1903 system. Four planets form a chain away from an orange star. Each planet is surrounded by wisps of gas. The furthest out planet is in the foreground and has a brown, cratered surface. The other three planets are more bluish. Credit: ESA
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Rocky Worlds Meetings @rockyworlds.bsky.social · 28/09/2026
To understand rocky planet formation, we need to seek out the solar systems that break all our rules 🤘🪐 At the next #RockyWorldsDiscussion, Thu 1 Oct @ 13:00 UTC, Tom Wilson will present one such rebel, LHS 1903, and what it says about planet compositions More: rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Tom Wilson. He is slightly smiling into the camera. He has brown hair and is wearing a brown shirt, in front of a white background.Artist's depiction of the LHS 1903 system. Four planets form a chain away from an orange star. Each planet is surrounded by wisps of gas. The furthest out planet is in the foreground and has a brown, cratered surface. The other three planets are more bluish. Credit: ESA
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Rocky Worlds Meetings @rockyworlds.bsky.social · 31/08/2026
The goal for the next generation of space missions is biosignature detection on rocky planets. 👽🌱🌍🌌 At the next #RockyWorldsDiscussion on Thu 3 Sep @ 13:00 UTC, Sarah Rugheimer will tell us about one important catch: the planets' UV environments. ☀️🧴 More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Sarah Rugheimer. She is smiling and looking into the camera. She has blonde hair and is wearing a green sleeveless outfit with a small gold necklace, black glasses, and a black wristwatch. She stands leaning against a column of beige stone with an open doorway visible behind her.Artist's conception of the Habitable Worlds Observatory, a space telescope, gathering data from a distant star. Image credit: Walt Feimer, NASA Scientific Visualization Studio
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Rocky Worlds Meetings @rockyworlds.bsky.social · 31/08/2026
The goal for the next generation of space missions is biosignature detection on rocky planets. 👽🌱🌍🌌 At the next #RockyWorldsDiscussion on Thu 3 Sep @ 13:00 UTC, Sarah Rugheimer will tell us about one important catch: the planets' UV environments. ☀️🧴 More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Sarah Rugheimer. She is smiling and looking into the camera. She has blonde hair and is wearing a green sleeveless outfit with a small gold necklace, black glasses, and a black wristwatch. She stands leaning against a column of beige stone with an open doorway visible behind her.Artist's conception of the Habitable Worlds Observatory, a space telescope, gathering data from a distant star. Image credit: Walt Feimer, NASA Scientific Visualization Studio
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Rocky Worlds Meetings @rockyworlds.bsky.social · 03/08/2026
It's time to go beyond the simple habitable zone: what kinds of circulation patterns 🌀, clouds 🌦️, and climates 🌊 can rocky worlds around M dwarfs have? Hear about it from Takanori Kodama at the next #RockyWorldsDiscussion on Thu 6 Aug @ 13:00 UTC! More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Takanori Kodama. He is looking into the distance to the left of the image. He has long dark hair and is wearing a white tee and black glasses. He is standing in front of blossoming cherry trees.An artist's rendition of two terrestrial planets partially illuminated by a red M-dwarf host star. The planets are bright white and have indistinct surface features. Credit: NASA/ESA/CSA/Joseph Olmsted (STScI)/Webb Space Telescope
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Rocky Worlds Meetings @rockyworlds.bsky.social · 03/08/2026
It's time to go beyond the simple habitable zone: what kinds of circulation patterns 🌀, clouds 🌦️, and climates 🌊 can rocky worlds around M dwarfs have? Hear about it from Takanori Kodama at the next #RockyWorldsDiscussion on Thu 6 Aug @ 13:00 UTC! More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Takanori Kodama. He is looking into the distance to the left of the image. He has long dark hair and is wearing a white tee and black glasses. He is standing in front of blossoming cherry trees.An artist's rendition of two terrestrial planets partially illuminated by a red M-dwarf host star. The planets are bright white and have indistinct surface features. Credit: NASA/ESA/CSA/Joseph Olmsted (STScI)/Webb Space Telescope
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Rocky Worlds Meetings @rockyworlds.bsky.social · 07/07/2026
To meet about and understand Rocky Worlds 🪨🌍, we better figure out whether the worlds are rocky 🤔💭! In this week's #RockyWorldsDiscussion on Thu July 9 @ 13:00 UTC, Cayman Unterborn will tell us just how precisely we need to know our planet parameters. More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Cayman Unterborn. He is smiling
and looking into the camera. He has brown hair and beard and is wearing a black sweater, blue shirt, and green bow tie, with a nondescript gray background.An artist's rendition of a series of small planets, with various colors and features, trailing off into space. Credit: NASA/JPL-Caltech
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Rocky Worlds Meetings @rockyworlds.bsky.social · 07/07/2026
To meet about and understand Rocky Worlds 🪨🌍, we better figure out whether the worlds are rocky 🤔💭! In this week's #RockyWorldsDiscussion on Thu July 9 @ 13:00 UTC, Cayman Unterborn will tell us just how precisely we need to know our planet parameters. More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Cayman Unterborn. He is smiling
and looking into the camera. He has brown hair and beard and is wearing a black sweater, blue shirt, and green bow tie, with a nondescript gray background.An artist's rendition of a series of small planets, with various colors and features, trailing off into space. Credit: NASA/JPL-Caltech
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Rocky Worlds Meetings @rockyworlds.bsky.social · 04/05/2026
Famous #exoplanet K2-18 b: is it a super-Earth, a sub-Neptune, or something else entirely? 🌍🌔☁️🪐 The secret of its interior lies in its exterior... the atmosphere! Hear more from Shang-Min (Shami) Tsai's #RockyWorldsDiscussion on Thu 7 May @ 13:00 UTC! More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Shang-Min (Shami) Tsai. He is smiling and looking into the camera. He has short dark hair, is wearing glasses, and a white striped shirt. He is stood inside, with a blurred background behind him featuring a window.Credits: Illustration: NASA, ESA, CSA, Joseph Olmsted (STScI); Science: Nikku Madhusudhan (IoA) 

This illustration shows what exoplanet K2-18 b could look like based on science data. K2-18 b, an exoplanet 8.6 times as massive as Earth, orbits the cool dwarf star K2-18 in the habitable zone and lies 120 light years from Earth.
 
A new investigation with NASA’s James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and carbon dioxide.

The abundance of methane and carbon dioxide, and shortage of ammonia, support the hypothesis that there may be a water ocean underneath a hydrogen-rich atmosphere in K2-18 b.

In this illustration, the exoplanet K2-18 c is shown between K2-18 b and its star.
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Rocky Worlds Meetings @rockyworlds.bsky.social · 02/04/2026
📢 Join us live in ~1.5 hours! 13:00 UTC = 15:00 CEST = 09:00 EDT = 06:00 PDT = 22:00 JST If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 Livestream: www.youtube.com/watch?v=VlQw...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 01/04/2026
Don't judge a planet by its cover! 📖🪐 Join our next #RockyWorldsDiscussion online tomorrow on Thu 2 April at 13:00 UTC where Ana-Catalina Plesa from DLR will discuss how we can link models of rocky planet interiors to observations of their surfaces 🌋 More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Ana-Catalina Plesa. She facing the camera straight on and at eye level. She has long hair and is wearing glasses and small earrings with a grey shirt layered with a black cardigan or blazer. She is stood outdoors with some trees visible but blurred in the background.Two cross-sections of planet Mars are shown, showcasing two alternative possibilities of what its interior structure might look like. 

A thin atmosphere covers the crust that blankets the mantle and core. Whether the core of Mars contains an inner solid and an outer liquid layer (left) or it is entirely liquid (right) it is not known. From DLR: "Latest indirect observations seem to favour the latter version of the interior structure."

Image taken from https://www.dlr.de/en/images/missions/mars/interior-structure-of-mars

Credit: adaptiert nach IPGP/David Ducros.
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Rocky Worlds Meetings @rockyworlds.bsky.social · 05/03/2026
📢 Less than 1 hour left until this talk begins! 14:00 UTC = 15:00 CET = 09:00 EST = 06:00 PST = 23:00 JST If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 Livestream: www.youtube.com/watch?v=058C...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 02/03/2026
You've maybe heard of ocean planets 🌊🪐 but what about *electric magma* ocean planets?! 🔥⚡🌋 For our next #RockyWorldsDiscussion on Thu 5 March @ 14:00 UTC, Miki Nakajima will present exciting simulations on magma ocean dynamos in Earth and super-Earths More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Miki Nakajima. She is smiling and looking into the camera. She has long dark hair and is wearing earrings & a white striped shirt with a black blazer. She is stood outdoors, leaning against a fence, with some trees visible but blurred in the background.A photo of... a magma ocean?! Not quite, because that would be a really difficult picture to take since we do not have any on hand. Instead, this is a photo that was taken in the Hawaii Volcanoes National Park, in May 1954 during the eruption of the Kilauea Volcano. The floor is literally lava, blackened and fragmented with what appears to be whirlpools of red and yellow lava in their centres. Close enough? Credit: Photo by J. P. Eaton, May 31, 1954
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Rocky Worlds Meetings @rockyworlds.bsky.social · 05/02/2026
📢 Less than 1 hour left until this talk begins! 14:00 UTC = 15:00 CET = 09:00 EST = 06:00 PST = 23:00 JST If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 Livestream: www.youtube.com/watch?v=6t9B...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 03/02/2026
Would you dare to stand up against the wrath of a star?! Brave little Venus does... and still has an atmosphere! ☀️💨🪐🧲 Next #RockyWorldsDiscussion on Thu 5 Feb @ 14:00 UTC features Moa Persson on "Venus: Defying the Solar Wind Without a Magnetic Shield" More: www.rockyworlds.org/event-detail... 🧪🔭
An image of the speaker, Moa Persson. She is smiling and looking into the camera over her shoulder. She has light brown hair down to her shoulders, and is wearing a blue shirt with glasses. She is holding a hammer as she is completing her "thesis nailing", a tradition at many Swedish universities for finishing PhD students. An artist illustration of Venus, and its atmosphere eroding against solar winds. Credit: ESA (Animation by C. Carreau)

Longer caption attached to the image on ESAs website, posted November 2007:

"Mars, Earth and Venus are immersed in a flow of plasma, an ionised and highly variable gas originating from the Sun, called the solar wind.

While Earth has a planetary magnetic field, which can deviate the flow of solar wind, Venus (and Mars) don’t. Gases in the upper atmospheres of these planets are ionised and can thus interact with the solar wind.

Venus is as large as Earth and it is difficult for its atmosphere to escape due to the planet’s gravity. The solar wind is the best source of energy to accelerate the upper atmosphere’s charged particles, giving them enough energy to escape. This is why Venus loses its atmosphere due to interaction with the solar wind.

To understand this phenomenon, the key questions that the instruments studying plasma on Venus Express must answer are: what and how much of the atmosphere is lost, and where is it lost?

Right now, solar activity is at its minimum in the 11-year cycle, making the solar wind weaker than average. The critical question now is how solar wind interacts with Venus when solar activity is low."
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Rocky Worlds Meetings @rockyworlds.bsky.social · 03/02/2026
A HUGE thank you to all attendees of the #RockyWorlds4 conference in Groningen! We had an absolutely incredible time talking astronomy, geoscience, biology, and so much more 🚀🌋🌱🪐✨🔭🧪 Catch the recorded talks on www.youtube.com/@rockyworlds And see you in Berlin in 2028! berlin2028.rockyworlds.org
A group photo showing a huge crowd, namely the attendees of the Rocky Worlds 4 conference! They are stood up and around a big staircase and walkway inside a modern building; smiling; and throwing their hands up.
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Hannah Sanderson @han-san-planets.bsky.social · 23/01/2026
Had a great time at #RockyWorlds4 this week - presenting my PhD work on magnetic field generation in planetesimals 🧲 and learning lots about magma oceans 🔥ready for my post doc project. Thanks to everyone for such great discussions and @rockyworlds.bsky.social for organising a fantastic meeting!
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Science Newsroom - Faculty of Science and Engineering - UG @sciencenewsroom-ug.bsky.social · 22/01/2026
🌍 Astronomers from all over the world are coming to Groningen for the #RockyWorlds4 conference. 'We would like to broaden the ideas about what a rocky planet could be made up of,' says Inga Kamp, astrophysicist @rug.nl. Curious? Read more 👇 🔗 www.rug.nl/fse/news/mat... 🧪 #SciComm
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Mariana Sastre @marianasastre.bsky.social · 22/01/2026
Poster discussions at #RockyWorlds4 has been amazing! Coffee breaks are on 🔥🔥🔥Super creative posters with incredible science, I think we are improving as a community to communicate our research to other colleagues 🧐 Looking forward for the poster competition ✨ @rockyworlds.bsky.social
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Elise Cutts @elisecutts.bsky.social · 20/01/2026
Another cool result shared at #RockyWorlds4: Nearly all sub-Neptunes, if they are gas dwarfs (as opposed to water worlds), should have magma oceans beneath their hydrogen atmospheres. That includes the notorious K2-18b — if it is indeed a gas dwarf and not an ocean planet. Preprint:
arxiv.org
Most Rocky Sub-Neptunes are Molten: Mapping the Solidification Shoreline for Gas Dwarf Exoplanets
Sub-Neptunes are the most common type of detected exoplanet, yet their observed masses and radii are degenerate with several interior structures. One possibility is that sub-Neptunes have silicate/iro...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 20/01/2026
Looks like Planet Earth is a fan of #RockyWorlds4 as it gifted us with a gorgeous conference souvenir last night! 🤩🔭🧪
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Tim Lichtenberg @timlichtenberg.bsky.social · 20/01/2026
You're welcome! 🔭😊 The LOC of #RockyWorlds4 (groningen2026.rockyworlds.org/organisers/loc) is doing everything they can to make the conference an unforgettable experience. 😁
groningen2026.rockyworlds.org
ROCKY WORLDS 4 - LOC
Mariana Sastre
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David R. Rice @davidrrice.bsky.social · 19/01/2026
Frankie mouse made it to Groningen. Coming to #RockyWorlds4 tomorrow! And check out Magrathea for your MR relationship or planet composition needs: github.com/Huang-CL/Mag... v2 live now and v3 already on the horizon
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Elise Cutts @elisecutts.bsky.social · 19/01/2026
First results from the Lava Lamps survey hunting for atmospheres on lava planets shared at #RockyWorlds4: It looks like there could be some kind of transition in the way lava planets redistribute heat around ~2500 K, which could indicate that the very hottest worlds have atmospheres. Mysterious!
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Johanna Teske @johannateske.bsky.social · 17/01/2026
I'm excited to spend the week hearing and talking about rocky worlds! This is one of my favorite meeting series, I leave energized and with new ideas. 😁 You can follow along with the talks on YouTube if you aren't joining us in person or on Zoom: www.youtube.com/@rockyworlds...
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Elise Cutts @elisecutts.bsky.social · 19/01/2026
@johannateske.bsky.social's #RockyWorlds4 talk on TOI-561 b just reinforces my feeling that this weird little planet is one to keep an eye on. It's among a handful of hot rocks challenging what we think we know about which planets have air. I wrote about this last year for @sciam.bsky.social:
scientificamerican.com
This Fiery Exoplanet Shouldn’t Have an Atmosphere—But It Does
Hot, small and old—exoplanet TOI-561 b is just about the worst place to look for alien air. Scientists using JWST found it there anyway
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Linn Boldt-Christmas @nplinnspace.bsky.social · 19/01/2026
Really enjoyed this awesome poster at #RockyWorlds4 by William Brilliant about @terrahunting.bsky.social — can’t believe we are so close to starting our hunt for Earth-like #exoplanets in our cosmic neighbourhood!! 🤩🌍🔭
Poster entitled ”HARPS3 in commissioning” by William Brilliant from the University of Cambridge on behalf of the HARPS3 consortium
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Elise Cutts @elisecutts.bsky.social · 19/01/2026
My visit to #RockyWorlds4 kicked off with a hot take from @nplinnspace.bsky.social's poster: Even in the best-case scenario, we couldn't tell how "Earth-like" an Earth-like planet is 🔥 She assumed TRAPPIST-1 e had Earth-like air and showed that vastly different climates would be indistinguishable.
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Kapteyn Astronomical Institute @kapteynastro.bsky.social · 19/01/2026
At #RockyWorlds4 in Groningen, scientists explore rocky planets with radically different chemistries and atmospheres. With the LIFE mission, they aim to study exoplanets directly and look for unexpected signs of life — not aliens, but subtle atmospheric clues. Read more: www.rug.nl/fse/news/mat...
rug.nl
De zoektocht naar buitenaards leven – en kunnen we die ook wat oprekken?
Op zoek naar buitenaards leven kijken we meestal naar planeten die min of meer lijken op de aarde. RUG-astrofysici Inga Kamp en Floris van der Tak leggen...
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Elise Cutts @elisecutts.bsky.social · 19/01/2026
Hello #RockyWorlds4! I'm Elise, a science journalist here hunting for awesome science stories about planets. I'm cool, I promise — I used to be a scientist so I might even understand your science jargon 🤓Come say hi and tell me about your work!
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Rocky Worlds Meetings @rockyworlds.bsky.social · 16/01/2026
Wondering why we've been so quiet this month? That's because we're busy preparing to welcome everyone *next week* to Groningen 🇳🇱 for... 🌋✨🚀 The ROCKY WORLDS 4 Conference 2026! 🪐✨☄️ Updates will be posted throughout the week from this account & others using the #RockyWorlds4 hashtag – stay tuned! 🔭🧪
A view of the canal in the city of Groningen, Netherlands. The sky is blue and the trees lining the water are green, so it's *definitely* not taken in January. Credit: https://www.hanze.nl/en/study/living-in-the-netherlands-and-groningen/groningen-is-waiting-for-youA screenshot from our conference website: https://groningen2026.rockyworlds.org/

The text reads:
Rocky Worlds 4
19–23 January 2026, Groningen, Netherlands
In-person registrations for the conference are booked up.
Registration for virtual participation is open.
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Rocky Worlds Meetings @rockyworlds.bsky.social · 03/12/2025
📢 Don't forget to join us for this talk tomorrow (Thursday)! 14:00 UTC = 15:00 CET = 09:00 EST = 06:00 PST = 23:00 JST If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 Livestream: www.youtube.com/watch?v=e2jI...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 28/11/2025
6,000 #exoplanets have been found to date, but ZERO of them are Earth-like planets around Sun-like stars! Why is that? Do any exist? Or is it just hard? ☀️🌍🔭 Join us on Thu 4 Dec @ 14:00 UTC for a #RockyWorldsDiscussion with Annelies Mortier to find out! More: www.rockyworlds.org/event-detail... ☄️🧪
An image of the speaker, Annelies Mortier. She is smiling and looking into the camera. She has brown hair down to past her shoulders, and is wearing a red top with a silver necklace. She is against a white wall background.An artistic illustration of Earth and the Sun (not to scale). In the bottom of the right half the image, the top half of the Earth is visible, showing some cloud coverage over parts of North/Central America. In the top of the left half of the image, the Sun is visible as a flaming ball, with bright edges around it and some granulation + bright spots. In the background, a starry sky.

Image credit: Shutterstock
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Rocky Worlds Meetings @rockyworlds.bsky.social · 05/11/2025
📢 Don't forget to join us for this talk tomorrow (Thursday)! 14:00 UTC = 15:00 CET = 09:00 EST = 06:00 PST = 23:00 JST If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 Livestream: www.youtube.com/watch?v=6u7P...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 30/10/2025
What sets our home planet 🌍 apart from our sister next door? 🌔☁️🔥 On Thu 6 Nov @ 14:00 UTC, Diogo Lourenço will be our next #RockyWorldsDiscussion speaker and tell us how bulk composition & lava flows impact long-term evolution of our neighbour Venus More: www.rockyworlds.org/event-detail... 🧪🔭☄️
An image of the speaker, Diogo Lourenço. He is smiling and looking into the camera. He has brown hair down to between his ears and shoulders, and facial hair. He is against a white-ish background.Astronomy Picture of the Day (APOD) from 30 January 2018: "Venus at Night in Infrared from Akatsuki" - Image Credit: JAXA, ISAS, DARTS; Processing & Copyright: Damia Bouic. Description from the APOD caption: In the featured image taken by Akatsuki's IR2 camera, Venus's night side shows a jagged-edged equatorial band of high dark clouds absorbing infrared light from hotter layers deeper in Venus' atmosphere. The bright orange and black stripe on the upper right is a false digital artifact that covers part of the much brighter day side of Venus. Analyses of Akatsuki images and data has shown that Venus has equatorial jet similar to Earth's jet stream.
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Rocky Worlds Meetings @rockyworlds.bsky.social · 01/10/2025
📢 Don't forget to join us for this talk tomorrow (Thursday)! 13:00 UTC = 15:00 CEST = 09:00 EDT = 06:00 PDT = 22:00 JST If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 #exoplanet livestream: www.youtube.com/watch?v=nMr2...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 24/09/2025
Cloudy with a chance of... haze? Aerosol? Carbon dioxide?!🌦️ Next #RockyWorldsDiscussion on Thu 2 Oct @ 13:00 UTC will feature Kazumasa Ohno (NAOJ) and recent JWST results that lift the hazy veil on the composition of sub-Neptune #exoplanet GJ 1214 b 🪐🔭🧪 More: www.rockyworlds.org/event-detail...
An image of the speaker, Kazumasa Ohno. He is smiling and looking into the camera. He is wearing a navy blue cable-knit jumper with a checkered shirt, and glasses. He is against a background of what appears to be other people as the photo is seemingly cropped from a group photo.Artistic illustration of sub-Neptune TOI-421 b. A hypothetical exoplanet with similar banding to Jupiter, but in blue colours, is shown in the foreground. In the distant, the planet's host star is shown, which is a warm golden colour and shows diffraction spikes.

Image credit: SciTechDaily.com
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Rocky Worlds Meetings @rockyworlds.bsky.social · 09/09/2025
🗣️ Reminder: abstract submission for the Rocky Worlds 4 conference closes **Sunday 14 September** Submit your abstract below and see you in Groningen in January 2026! 🪐🔭🧪
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Rocky Worlds Meetings @rockyworlds.bsky.social · 04/09/2025
📢 Reminder: this talk is happening later TODAY (Thursday)! Sign up to our mailing list to access the Zoom-link, or watch it live on our YouTube channel 🔭☄️🧪 www.youtube.com/watch?v=uoef... 16:00 UTC = 18:00 CEST = 12:00 EDT = 09:00 PDT = 01:00 (+1d) JST = 02:00 (+1d) AEST
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Rocky Worlds Meetings @rockyworlds.bsky.social · 02/09/2025
#RockyWorldsDiscussion is back from our summer break! 🔭🧪 Our next speaker is Laura Schaefer from Stanford University, who will tell us about redox gradients in planet formation simulations of terrestrial planets 🌍🌕🪨 Join us on Zoom on Thu 4 Sep @ 16:00 UTC More: www.rockyworlds.org/event-detail...
An image of the speaker, Laura Schaefer. She is smiling and looking into the camera. She is wearing a purple-grey zip-up jumper and sunglasses on her head. She is against a background of a large rock with some grass visible near the bottom, clearly outdoors.An artistic conception of early Earth showing the planet's surface impacted by asteroids. Earth is shown with partial oceans and the land that is visible is covered in clear craters. Part of the Earth (bottom left) is also shown as covered by lava or a magma ocean.

Image credit: Simone Marchi, NASA. Taken from https://www.scientificamerican.com/article/early-earth-s-atmosphere-was-surprisingly-thin/
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Rocky Worlds Meetings @rockyworlds.bsky.social · 03/07/2025
Happening now! 🪐☄️🔭🧪 www.youtube.com/watch?v=OSSL...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 30/06/2025
The formation of sub-Neptunes is a steamy topic – literally! 😶‍🌫️ Remo Burn from MPIA will present "Between Steam and Stone: The Role of Volatile Delivery, Phase, & Partitioning in Setting Planetary Radii" on Thu 3 July @ 13:00 UTC 🪐☄️🔭 🧪 #RockyWorldsDiscussion More: www.rockyworlds.org/event-detail...
An image of the speaker, Remo Burn. He is smiling and looking into the camera. He is wearing a blue blazer jacket with a white shirt and pink-red tie. He is against a blurred, stony background with some greenery.An artist's interpretation of the water-rich atmosphere of K2-18b. The planet's surface and atmosphere is in the foreground, where the surface looks orange/brown (similar to Mars) and is dotted by some pale clouds. The upper atmosphere is diffuse and steam-like, and grey/blue in colour. In the background is a red/orange host star, seemingly quite active, and another planetary body is between this foreground planet and the host. The other body also appears to have a diffuse atmosphere around it.

Image credit: Alex Boersma
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Rocky Worlds Meetings @rockyworlds.bsky.social · 10/06/2025
📣 Calling all rocky enthusiasts! We are thrilled to announce that the ROCKY WORLDS 4 Conference will take place 19-23 Jan 2026 in Groningen, NL 🇳🇱 This is the 4th Meeting in our series & we can't wait to see you there! Abstract submission is NOW OPEN groningen2026.rockyworlds.org/groningen-2026 🪐☄️🔭
Screenshot from the home page of https://groningen2026.rockyworlds.org/groningen-2026. It is the Rocky Worlds symbol (a stylised cross-section of a planet) on a plain, pastel-yellow background with the following information:

Rocky Worlds 4
19-23 January 2026, Groningen, Netherlands
Abstract submission open
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Rocky Worlds Meetings @rockyworlds.bsky.social · 04/06/2025
📢 Don't forget to join us for this talk tomorrow (Thursday)! 13:00 UTC = 15:00 CEST = 09:00 EDT = 06:00 PDT = 22:00 JST If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 #exoplanet livestream: www.youtube.com/watch?v=nA1L...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 29/05/2025
Machine learning 🤖 + spectrometry 🧪 = astrobiology? 🌱🪐☄️🔭 Michael Wong @miquai.bsky.social & Anirudh Prabhu @anirudhprabhu.bsky.social of Carnegie EPL will discuss new biosignature detection methods at the next #RockyWorldsDiscussion Thu 5 June @ 13:00 UTC! More: www.rockyworlds.org/event-detail...
Two images side-by-side of the speakers. Both speakers are smiling and looking at the camera, and both are stood against a blurry, leafy background. 

Left: Michael Wong. He is wearing a pink shirt over a graphic tee. The bottom half of it is cut off, but the top half is seen to say "Support Your..." above what appears to be a globe. 

Right: Anirudh Prabhu. He is wearing an off-white button-down shirt with a faintly pin-striped black blazer over it. Artist’s conception of what life could look like on the surface of a rocky exoplanet. A planetary surface, similar to that of Mars or desert-regions of Earth, covers the image horizontally. The sky is a dark brownish orange-red, not dissimilar in colours of the surface. In the foreground, there is a green lagoon-looking pool, with an underwater cave visible beneath the clear water surface. In the background, in the sky, a close-up and seemingly active star (Sun) with three minor planetary bodies in front of it like moons.

Image credit: NASA
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Rocky Worlds Meetings @rockyworlds.bsky.social · 01/05/2025
📢 Starting in ~10 minutes! If you haven't signed up to our mailing list to access the Zoom-link, you can also watch it live on our YouTube channel 🔭☄️🧪 #exoplanet livestream: www.youtube.com/watch?v=Q_or...
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Rocky Worlds Meetings @rockyworlds.bsky.social · 28/04/2025
What shapes the chemical environment of growing baby #exoplanets? 🧪🔭☄️ At the next #RockyWorldsDiscussion, we will hear Sebastiaan Krijt from @exeter.ac.uk tell us about planet formation with ALMA & JWST – join us on Thu 1 May @ 13:00 UTC on Zoom and YouTube More: www.rockyworlds.org/event-detail...
An image of the speaker, Sebastiaan Krijt. He is smiling and looking off to the left of the camera. He is wearing a blue jacket with a pale blue shirt and is stood against a faintly yellow wall.Artist’s conception of the view toward the young star Beta Pictoris from the outer edge of its disk. This disk of dust and gas orbiting the star is produced by collisions between and evaporation of asteroids and comets. A giant planet may have already formed and terrestrial planets may be forming. 

Credit: NASA/FUSE/Lynette Cook
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Rocky Worlds Meetings @rockyworlds.bsky.social · 03/04/2025
📢 ~1 hour left until this talk! Sign up to our mailing list to access the Zoom-link, or watch it live on our YouTube channel 🔭🪐🧪
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Rocky Worlds Meetings @rockyworlds.bsky.social · 31/03/2025
Ever wonder what it'd be like on a planet hot enough to vaporize rock?🔥 Our next #RockyWorldsDiscussion speaker is Lisa Dang @astrolisadang.bsky.social who will present surface & atmosphere mapping of a lava #exoplanet on Thu 3 Apr @ 14:00 UTC on Zoom 🧪🔭☄️ More: www.rockyworlds.org/event-detail...
An image of the speaker, Lisa Dang. She is smiling at the camera. She is wearing glasses and a grey turtleneck sweater under a checkered blazer.An artist illustration of a lava planet. The rocky planet has patches of lava covering the majority of the surface, and what looks like a thin atmosphere around it. There is a smaller moon nearby, seemingly made of grey rock, looking not much unlike our own Moon.

Credit: Earth.com
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Rocky Worlds Meetings @rockyworlds.bsky.social · 06/03/2025
📢 Reminder: this talk is happening later TODAY (Thursday)! Sign up to our mailing list to access the Zoom-link, or watch it live on our YouTube channel 🔭☄️🧪 16:00 UTC = 17:00 CET = 11:00 EST = 08:00 PST = 01:00 (+1d) JST
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