Jools

couscous!! couscous!! couscous!!

I think we need tigher constraints on the lower limit of planetary mass at this stage to say anything definitive, but it is certainly begining to look like the temperatures are much higher than first though and any possible H2O cold trapping is getting less likely.

Hydrocarbon Hazes on Temperate sub-Neptune K2-18b supported by data from the James Webb Space Telescope K2-18b, a sub-Neptune orbiting in the habitable zone of an M dwarf, has attracted significant interest following observations with the Hubble Space Telescope (HST) and, more recently, with the James W...

K218b hazes? The plot thickens...!

Really interesting new analysis from @ruohanliu.bsky.social just out on arXiv

arxiv.org/abs/2509.10947

#exoplanets 🪐🔭🧪

Totally get behind this! GitHub pages was super intuitive to set up, and my very minimal html knowledge was more than up to the task with how many templates are out there! joolsclarke.co.uk if you want to check it out for inspo :)

Two days left to submit abstract to Rocky Words 4 Groningen in January 2026: groningen2026.rockyworlds.org @rockyworlds.bsky.social #exoplanets #astronomy #geoscience #planetaryscience

research.iac.es/proyecto/exo...

ft. of course a reappearance of 'the jacket' 😂😂

me, wearing a red ESA jacket, gesturing at a slide deck with a picture of me, wearing the same jacket. The title of the talk is 'Understanding predictions made by machine learning for spectroscopic atmospheric characterisation'

Super exciting to get to meet so many great people at Exoplanets by the Lake III, and to get an opportunity to present a slice of my upcoming machine learning research. I had some great discussions, but if you missed me, please reach out! #exoplanetsbythelake #exoplanets

UK gets first female Astronomer Royal in 350 years Prof Michele Dougherty is the first woman to be appointed to the influential post.

Big day for the matriarchy! 🥳 Huge congrats to the awesome Prof. Doughtery, lead on the Jupiter-bound ESA JUICE mission & STFC Exec Chair.

If anyone's confused on the astro royal hierarchy: Michele and I are the astro equivalents of 🇬🇧Westminster and 🏴󠁧󠁢󠁳󠁣󠁴󠁿Holyrood 🤗

ℹ️: www.bbc.co.uk/news/article... 👩‍🔬🔭🧪

Finding atmospheres would be great, but not finding them would be profound! (In the case of M dwarfs) - Jacob Lustig-Yaeger #sagan2025 #exoplanets

This, but also at the same time we need to let habitability not be the only motivator for exoplanet studies and move into population level studies. There is so much to be learned from the Jovian short period planets too #exoplanets

Investigating the Influence of Asymmetric Errors on Retrievals of Exoplanet Transmission Spectra In studies of exoplanet atmospheres using transmission spectroscopy, Bayesian retrievals are the most popular form of analysis. In these procedures it is common to adopt a Gaussian likelihood. However...

Super interesting investigation from Jack Davey on the effect of observation errors in retrievals. Good to know I don't have to panic _yet_, but definitely something to keep an eye on! #exoplanet 🔭

arxiv.org/abs/2507.19223

So 16 y-o's can vote but god forbid they send direct messages on bluesky ooooOoo -- yh it is clear this sudden care about online welfare has come at a very convenient time for the UK government amid crack downs on those in opposition to genocide across the country

If you need to verify any of this this, my website is joolsclarke.co.uk with links to my publications and university sites etc.

I am currently a PhD student working in exoplanetary atmospheres. I have been posting content from conferences and sharing my research and would like to share it with the wider astro community here :)

Yes

@bot.astronomy.blue signup

Why does the solar system not have super-Earths?

A thread #exoplanets ☄️

🔭🧪☄️ #exoplanets

Presented my work on K2-18b atmospheric retrievals at #BEACON25! Finally can relax now 😌

🎉🎉🔭🧪

#beacon25

Finally got to see these new k218b retrievals from @ruohanliu.bsky.social in person! 🧪🔭🪐 #exoplanets #beacon25

If you're interested in the role of machine learning in exoplanet characterisation, and in more depth about how we can understand these methods, check out what I've been doing in room B at 15:15!! 🪐🔭 #beacon25 #exoplanets

#exoplanets

If anyone is at BEACON 25 come say hi!

🧬🌋🪐🔭

#beacon25

Super exciting stuff! Ariel Data Challenge Launches today! I can't believe it's that time again already, but if you're looking for a bit of a fun coding challenge, check this out, previous years have been a lot of fun. #exoplanets 🔭🪐

www.instagram.com/p/DLhOUXEtKk...

Rafael Rianco-Silva (Instituto de Astrofisica e Ciencias do Espaco / UCL): A Study of Very High-Resolution Visible Spectra of Titan: Line Characterisation in Visible CH4 and the Search for C3.

#AllTheWavelengths

Rafael Rianco-Silva : Titan atmosphere and its spectroscopy of C3 #AllTheWavelengths

Exciting to see these results from Jack ! Also good to know I don't need to redo my analyses _again_ 🎉

Jack Davey (UCL): Investigating the Influence of Asymmetric Error Bars in Retrievals of Exoplanet Transmission Spectra.

#Exoplanets
#AllTheWavelengths