The MPIA call for summer interns is now live! This is a great opportunity for bachelors & masters students from anywhere in the world to come an complete a three month, fully funded research project in beautiful Heidelberg. Check it out here: www.mpia.de/en/careers/i...

Update on the atmosphere vs no atmosphere debate for TRAPPIST-1 b and c -- here's a nice and (IMO) conclusive result from Gillon and Ducrot et al.: no thick atmosphere on either planet. arxiv.org/pdf/2509.02128

Our paper on PSO J318 is finally out 💪 . I want to thank all of my coauthors who made this study possible 🙇 !! It could be that we see the first cloud seeding nuclei forming at the top of the atmosphere…? arxiv.org/abs/2507.18691

It’s a beautiful day in Cork to kick off our symposium on giant exoplanets and brown dwarfs #EAS2025

NEWS: #NASAWebb has directly imaged a cold exoplanet in an extremely misaligned orbit for the first time. The observations have surprised researchers in more than one way: webbtelescope.pub/3ZSctun #AAS246 🔭 🧪

The evidence for biosignatures on K2-18b is flimsy, at best Last week, Cambridge scientists announced the discovery of DMS and DMDS on K2-18b: what they call a "surefire biosignature." Now, cut through the hype and get to the truth. bigthink.com/starts-with-... #space #astronomy #science

𝗡𝗼, 𝗮 𝗯𝗶𝗼𝘀𝗶𝗴𝗻𝗮𝘁𝘂𝗿𝗲 𝘄𝗮𝘀 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗱𝗲𝘁𝗲𝗰𝘁𝗲𝗱 𝗶𝗻 𝗞𝟮-𝟭𝟴𝗯'𝘀 𝗮𝘁𝗺𝗼𝘀𝗽𝗵𝗲𝗿𝗲. K2-18b is back in the news, now with a bold claim that biosignature molecules (DMS and/or DMDS) have been 'detected at 3σ'. Most exoplanet astronomers are extremely sceptical about these claims, let's see why (1/n). 🔭🧪🪐 #exoplanet

At some point we need to have a discussion about the ethics of participation in press releases as scientists. From today’s K2-18b saga, Nikku Madhusudhan in the press release says ‘The signal came through loud and clear’ (1/n)

A direct imaging claim by Lagrange+ [https://arxiv.org/abs/2502.15081](“Evidence for a sub-jovian planet in the young TWA7 disk”) - a very clear point source but only one epoch… but it’s in the gap in the disk around the star. Will be exciting to see follow up. 🔭🪐 #astrodon

Delighted to share that my latest paper is finally out 🔭🪐 find it here arxiv.org/abs/2502.13610. This has been a real team effort -- huge thanks to my co-authors and the whole of the MIRI GTO team ✨

Nice writeup from @yollevoreloj.bsky.social of our recent paper, peering at a nearby exoplanet -- check it out! www.nature.com/articles/d41...

With astronomy job season approaching, if you’re a PhD or early postdoc, PLEASE make a webpage and put your current contact details on it, so that searching for “< your name > astronomer” finds you first - more explanation how and why here: Unsolicited Advice #astrodon 🔭🪐

A team of researchers led by MPIA's @elisabethastro.bsky.social used JWST to image an old cold gas giant exoplanet. The measurement opens the door to studying cold Jupiter-like planets on wide orbits around old stars to test model 🔭 www.mpia.de/news/science...

What’s the coolest exoplanet you’ve ever seen?

Hello astronomy hive mind! I'm looking for examples of exoplanet systems where a planet has been found - say at period A - and then a later paper claims that there is no planet at period A but there *is* a planet at period B that explains the data for the original planet claim. Any pointers?

One of the most useful little websites is symbolsalad.com, which has a huge range of mathematical and scientific unicode characters (like ¹ ₆ ≈ × ∞ + all Greek letters) on a simple webpage that doesn't have ads. There's something so nostalgic about simple websites that just... work.

Hi Bluesky! I'm advertising a position to join our modeling efforts to bring GPUs and machine learning/AI into both self-consistent and retrieval models for exoplanets. If you have interest in either ML/AI or in modeling brown dwarfs/exoplanets, please apply! due 2/12 jobregister.aas.org/ad/0395a595

November 30th is approaching 👀

A paper on the exoplanet #BetaPictoris b led by Leiden student Rico Landman showcasing CRIRES+ on the VLT - arxiv.org/abs/2311.13527 precise measurements of CO and water, P_rot=8.7hr and a RV precision of 0.3km/s. Hmm, 0.3km/s precision.... now there's an interesting thought! 🔭🪐

If you are thinking of applying to the postdoc position in exoplanet atmospheres at the University of Copenhagen, please feel free to reach out to me and ask any questions about my experience there 🙃

🚨🚨I'm hiring !!🚨🚨 I’m looking for a Research Fellow to join my team at Trinity College Dublin to work on Extrasolar Atmospheres ☘️🪐☁️🔭 Deadline: December 31st  Ad: jobregister.aas.org/ad/c1a19f23 Please share widely!

Reminder that the Big Ten Academic Alliance Fee Waiver program gives waivers for 15 schools' PhD programs (including OSU astro and OSU physics) for US citizen students w/ 3.0+ GPAs and diverse backgrounds! Easy form to complete due by Nov 15. btaa.org/resources-fo...

HR8799 JWST data 👀 the inner disk is detected! and all four planets! what a beautiful dataset, congrats Anthony Boccaletti and team 🪐🔭🧪💫 arxiv.org/abs/2310.13414

Am kommenden Samstag ist es soweit – dann gehen bei uns eine ganze Menge Türen auf. Wer in der Gegend ist: schaut doch mal vorbei, bei unserem Tag der Offenen Tür! 14. Oktober von 10 bis 17 Uhr. Es gibt viel zu sehen, zu hören und zu machen – z.B. auch für Kinder! www.mpia.de/tdot2023

so much cool science so little time 🪐🔭🧪

I am hoping to hire a postdoc to start in the summer or fall, to work on exoplanet or brown dwarf atmospheres! Details here: jobregister.aas.org/ad/c0d2c3a8 Join us here in beautiful Austin!

and relax

𝗥𝗲𝗮𝘀𝗼𝗻𝘀 𝘁𝗼 𝗯𝗲 𝘀𝗰𝗲𝗽𝘁𝗶𝗰𝗮𝗹 𝗮𝗯𝗼𝘂𝘁 𝘁𝗵𝗲 '𝗼𝗰𝗲𝗮𝗻 𝗽𝗹𝗮𝗻𝗲𝘁 𝘄𝗶𝘁𝗵 𝗽𝗼𝘀𝘀𝗶𝗯𝗹𝗲 𝘀𝗶𝗴𝗻𝘀 𝗼𝗳 𝗹𝗶𝗳𝗲'. Ok, probably everyone has seen the headlines about K2-18b by now. I've put together this thread to collate some thoughts on why many exoplanet astronomers are pretty sceptical about these claims - THREAD (1/N)

Just a little over 6 weeks until JWST Cy3 GO proposals are due! 🔭

Excited to spend the day thinking about JWST proposal ideas at STSci - thanks @astrorickman.bsky.social for hosting! 🪐💫🔭

Kudos to Rachel Bowens-Rubin (who I don't know) for the best paper title of the week ( arxiv.org/abs/2309.03402 ) : "A Wolf 359 in sheep's clothing". (ST:TNG fans will appreciate)

We had a great time hosting some debris disk experts at the MPIA this week for a JWST proposal workshop! Also really enjoyed the seminar from Tim Pearce and the MPIA colloquium from Sasha Hinkley - lots of good science to come for exoplanet and debris disk imaging 🪐

And if you do... maybe send them the astronomy feed details too? 😇🔭 https://bsky.app/profile/did:plc:jcoy7v3a2t4rcfdh6i4kza25/feed/astro

Had such a nice time last week at the UK Exoplanet meeting - thanks again to all the organizers! 🔭 Some personal highlights for me was learning about young transiting planets from Ed Gillen, and SO2 from @drjovian.bsky.social (watch out for a very cool result soon 👀). It's also always ... (1/2)

Astrofriends and followers! Remember our beautiful JWST image of the Fomalhaut system that was published a few months ago? Well, our program to observe the nearest debris disks will obtain data on our next target in three days: Vega!

TIL that the European Space Agency have updated their branding strategy to allow brands & retailers to use its logo more easily - good stuff https://www.esa.int/About_Us/Corporate_news/ESA_branded_merchandise_made_easy

Teachers of bluesky! Caltech/IPAC has a paid opportunity for educators to do authentic research with NASA astronomers. Travel is covered! Come hang out!!!

Oh look, it's me, interrupting your evening with another outrageous climate graph. Higher resolution available at https://zacklabe.com/global-sea-ice-extent-conc/ 🧪

Huddle up. We gotta get word out to teachers that @skypeascientist.bsky.social is a FREE program that matches their classrooms with scientists. During recruitment season we try to make sure we hit every US State. We're in 39 so far! Spread the word! https://www.skypeascientist.com/sign-up.html

Sorry I can’t come to the phone right, I’m too busy looking at fish in the Great Barrier Reef 😎🧪

🔭 the AAS published this informative article about virtual participation at their meeting. Tl;dr: uptake is low, it’s financially unsustainable. https://aas.org/posts/news/2023/08/future-virtual-participation-aas-meetings

JOB ADVERT for a Research/Senior Research Associate in Exoplanet Atmospheres to interpret spectroscopic data from JWST using theoretical models and/or analytical models - Come join our team at Bristol UK

Trying to pull together a bunch of guides for new users coming - will be posting them as quotes below so I can just start linking this post. Would be great if you can post any you have below!

Psst... new skeeters... do you like astronomy? Then you should check out the astronomy feed!

Hi Astronomy feed! 🔭 I'm looking for advice on pre-doc/post-bacc type positions in astronomy for a mentee - anyone have good links or advice? thank you !!

ESA swag? yes please! 🔭

Happy sciversary #JWST 🚀🪐🥳🥂 To celebrate, here’s a new peek at Rho Ophiuchi, our nearest star forming region. Gorgeous! Image credit: NASA, ESA, CSA, STScI, K. Pontoppidan (STScI), A. Pagan (STScI) https://esawebb.org/images/weic2316a/

We just passed 100 people signed up to post in the Astronomy feed! 🔭🥳 It's really cool to see the astronomy community on Bluesky growing so quickly! Please reskeet this post - let's get more people subscribed and/or signed up to the feed!

🔭 hello astronomy feed! I'll introduce myself over here too - I'm Elisabeth, a postdoc at the MPIA in Heidelberg, and I work on exoplanet observations. I'm particularly excited about systems where we can combine RV, astrometry, and imaging so as to get detailed orbit information and understand (1/2)