Rocky Worlds Meetings
@rockyworlds.bsky.social
390 followers 250 following 35 posts
Monthly online seminars on all topics related to rocky planets & #exoplanets from chemistry to geology to astrophysics☄️🧪🔭🪐🌍🌟 Sign up & more info: https://rockyworlds.org Watch previous talks: https://www.youtube.com/@rockyworlds
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rockyworlds.bsky.social
📢 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...
rockyworlds.bsky.social
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
rockyworlds.bsky.social
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
rockyworlds.bsky.social
🗣️ 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! 🪐🔭🧪
rockyworlds.bsky.social
📣 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
rockyworlds.bsky.social
📢 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
rockyworlds.bsky.social
#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/
rockyworlds.bsky.social
#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/
rockyworlds.bsky.social
Happening now! 🪐☄️🔭🧪

www.youtube.com/watch?v=OSSL...
rockyworlds.bsky.social
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
rockyworlds.bsky.social
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
rockyworlds.bsky.social
📣 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
rockyworlds.bsky.social
📢 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...
rockyworlds.bsky.social
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
rockyworlds.bsky.social
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
rockyworlds.bsky.social
📢 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...
rockyworlds.bsky.social
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
rockyworlds.bsky.social
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
rockyworlds.bsky.social
📢 ~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 🔭🪐🧪
rockyworlds.bsky.social
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
rockyworlds.bsky.social
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
rockyworlds.bsky.social
📢 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
rockyworlds.bsky.social
Tides? Volcanism? Magnetospheres?! Everyone’s favourite Jupiter moon Io has it all!🌋🧲🌊

On Thu 6 Mar @ 16:00 UTC on Zoom, Katherine de Kleer from @caltech.edu will tell us about Io's tidally-driven volcanism & mass loss at the next #RockyWorldsDiscussion 🧪🔭

More: www.rockyworlds.org/event-detail...
Image of the speaker, Katherine de Kleer. She is smiling at the camera and her arms are crossed. She is wearing a short-sleeved red shirt and is leaning against a concrete wall. Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine."

Image data: NASA/JPL-Caltech/SwRI/MSSS 
Image processing by Emma Wälimäki © CC BY.
rockyworlds.bsky.social
And if you're getting déjà vu from this post: yes, this is, in fact, our January talk that we unfortunately had to postpone due to the wildfires happening on the US West Coast at the time. We are very thankful that Katherine was able to reschedule and hope many of you can make it for her new slot! 🙌
rockyworlds.bsky.social
We regret to announce that tomorrow's talk (below) has been postponed due to the ongoing wildfires in the Los Angeles area where our speaker is located. We will share updates on the rescheduled date as soon as possible. Stay safe
#LAFire #LAfires
rockyworlds.bsky.social
Tides? Volcanism? Magnetospheres?! Everyone’s favourite Jupiter moon Io has it all! 🌋🧲🌊

On Thu 9 Jan @ 16:00 UTC on Zoom, Katherine de Kleer from
@caltech.edu will tell us about Io's tidally-driven volcanism & mass loss at the next #RockyWorldsDiscussion

More: www.rockyworlds.org/event-detail...
rockyworlds.bsky.social
Tides? Volcanism? Magnetospheres?! Everyone’s favourite Jupiter moon Io has it all!🌋🧲🌊

On Thu 6 Mar @ 16:00 UTC on Zoom, Katherine de Kleer from @caltech.edu will tell us about Io's tidally-driven volcanism & mass loss at the next #RockyWorldsDiscussion 🧪🔭

More: www.rockyworlds.org/event-detail...
Image of the speaker, Katherine de Kleer. She is smiling at the camera and her arms are crossed. She is wearing a short-sleeved red shirt and is leaning against a concrete wall. Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine."

Image data: NASA/JPL-Caltech/SwRI/MSSS 
Image processing by Emma Wälimäki © CC BY.
rockyworlds.bsky.social
📢 Reminder: this exciting Venus-talk is happening in 2 days (Thursday)! Sign up to our mailing list to access the Zoom-link, or watch it live on our YouTube channel 🔭🪐🧪

14:00 UTC = 15:00 CET = 09:00 EST = 06:00 PST = 23:00 JST
rockyworlds.bsky.social
Whatever happened to Venus?! 🪐☁️🔥 Join us for the next #RockyWorldsDiscussion on Thu 6 Feb @ 14:00 UTC (on Zoom) to hear Michael Way tell us about the climate history of our toasty neighbour Venus and recent work reanalyzing in-situ data from Pioneer Venus 🛰️

More: www.rockyworlds.org/event-detail...
Image of the speaker, Michael Way. He is smiling at the camera and is leaning with his right arm against a museum exhibit model of a spacecraft that is mostly out of view. He is wearing a light purple shirt and a darker purple tie with black trousers. He is also wearing a conference lanyard around his neck. First color images from the surface of Venus (Soviet Venera missions). The sky is a hazy yellow and the ground is dark rock or soil (I think? Sorry, I'm no geologist!!) with cracks in it. It looks quite a lot like dried-out Earth ground! Image Credit: NASA National Space Science Data Center/Harvard Micro Observatory/Don P. Mitchell
rockyworlds.bsky.social
Whatever happened to Venus?! 🪐☁️🔥 Join us for the next #RockyWorldsDiscussion on Thu 6 Feb @ 14:00 UTC (on Zoom) to hear Michael Way tell us about the climate history of our toasty neighbour Venus and recent work reanalyzing in-situ data from Pioneer Venus 🛰️

More: www.rockyworlds.org/event-detail...
Image of the speaker, Michael Way. He is smiling at the camera and is leaning with his right arm against a museum exhibit model of a spacecraft that is mostly out of view. He is wearing a light purple shirt and a darker purple tie with black trousers. He is also wearing a conference lanyard around his neck. First color images from the surface of Venus (Soviet Venera missions). The sky is a hazy yellow and the ground is dark rock or soil (I think? Sorry, I'm no geologist!!) with cracks in it. It looks quite a lot like dried-out Earth ground! Image Credit: NASA National Space Science Data Center/Harvard Micro Observatory/Don P. Mitchell
rockyworlds.bsky.social
The new date for Katherine de Kleer's talk on "Tidally-driven volcanism and mass loss at Jupiter’s moon Io" is March 6! More info: www.rockyworlds.org/event-detail... 🌋🪐🔭
rockyworlds.bsky.social
We regret to announce that tomorrow's talk (below) has been postponed due to the ongoing wildfires in the Los Angeles area where our speaker is located. We will share updates on the rescheduled date as soon as possible. Stay safe
#LAFire #LAfires
rockyworlds.bsky.social
Tides? Volcanism? Magnetospheres?! Everyone’s favourite Jupiter moon Io has it all! 🌋🧲🌊

On Thu 9 Jan @ 16:00 UTC on Zoom, Katherine de Kleer from
@caltech.edu will tell us about Io's tidally-driven volcanism & mass loss at the next #RockyWorldsDiscussion

More: www.rockyworlds.org/event-detail...
Image of the speaker, Katherine de Kleer. She is smiling at the camera and her arms are crossed. She is wearing a short-sleeved red shirt and is leaning against a concrete wall. Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine."

Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Emma Wälimäki © CC BY.
rockyworlds.bsky.social
Tides? Volcanism? Magnetospheres?! Everyone’s favourite Jupiter moon Io has it all! 🌋🧲🌊

On Thu 9 Jan @ 16:00 UTC on Zoom, Katherine de Kleer from
@caltech.edu will tell us about Io's tidally-driven volcanism & mass loss at the next #RockyWorldsDiscussion

More: www.rockyworlds.org/event-detail...
Image of the speaker, Katherine de Kleer. She is smiling at the camera and her arms are crossed. She is wearing a short-sleeved red shirt and is leaning against a concrete wall. Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine."

Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Emma Wälimäki © CC BY.
rockyworlds.bsky.social
🔭🪐 Don't miss out on joining us for this talk later today (Thursday)!

16:00 UTC = 17:00 CET = 11:00 EST = 08:00 PST = 01:00 JST
rockyworlds.bsky.social
Habitable zone planets around M-dwarfs: do they end up as airless rocks or do they retain atmospheres? 🌥️🪨 Join us Thu 5 Dec @ 16:00 UTC on Zoom for a #RockyWorldsDiscussion with Joshua Krissansen–Totton talking about TRAPPIST-1, models, & more!

www.rockyworlds.org/event-detail...

🧪🪐🔭
Picture of the speaker, Joshua Krissansen–Totton, smiling Artist's impression of the surface (as seen from space) of a rocky planet around the TRAPPIST-1 star, a red dwarf, which is seen in the distance. Another small exoplanet transits the face of the glowing red host star.
rockyworlds.bsky.social
Habitable zone planets around M-dwarfs: do they end up as airless rocks or do they retain atmospheres? 🌥️🪨 Join us Thu 5 Dec @ 16:00 UTC on Zoom for a #RockyWorldsDiscussion with Joshua Krissansen–Totton talking about TRAPPIST-1, models, & more!

www.rockyworlds.org/event-detail...

🧪🪐🔭
Picture of the speaker, Joshua Krissansen–Totton, smiling Artist's impression of the surface (as seen from space) of a rocky planet around the TRAPPIST-1 star, a red dwarf, which is seen in the distance. Another small exoplanet transits the face of the glowing red host star.
rockyworlds.bsky.social
⬇️Starting in ~1 hour!⬇️
rockyworlds.bsky.social
How will we study rocky exoplanets in the era of Extremely Large Telescopes? 🔭🌎 Jayne Birkby
@jaynebirkby.bsky.social of University of Oxford will present "Rocky Worlds in High Spectral Resolution" – Thu 7 Nov @ 13:00 UTC (Zoom) #RockyWorldsDiscussion

More: www.rockyworlds.org/event-detail...