Benchmarking Two Chemical Networks used in General Circulation Models of Hot Jupiters Chemical kinetics is becoming an increasingly vital component of hot Jupiter general circulation models (GCMs). Here we simulate the hot Jupiter WASP-96b using two chemical networks, a reduced chemica...

I compared the Venot 2019 reduced chemical network with the minichem network to better understand how they perform as options for GCMs. The results are up now on arXiv and accepted to MNRAS. #exoplanets

arxiv.org/abs/2604.15850

The full letter and testimony extracts are chilling docs.google.com/document/d/1...

If you’ve been moved & inspired by Artemis, NASA needs your help. Literally during A2, the president proposed cutting NASA science 47%, canceling 54 missions, including many already in-flight. To help stop these cuts, check out @planetarysociety.bsky.social www.planetary.org/save-nasa-sc...

🎉 The latest paper by the great Jiachen Liu (@jiachenliu.bsky.social) on chemical transport in the atmosphere of K2-18b is now up on the arXiv. 🎉

arxiv.org/abs/2604.07987

This is terrorism.

I don't know how anyone else feels about this, but to me, sharing a screenshot of chatbot output to make a point of some kind is an excellent way to undermine any credibility that might otherwise be granted to you in the context of whatever you're trying to say.

Partly Cloudy with Molten Iron Rain - Beth Biller YouTube video by BOWIE+ Seminars

Direct imaging of brown dwarfs and exoplanets provides our best look at atmospheres outside our solar system, and Beth Biller will help you make sense of all the data. #astronomy #exoplanets

www.youtube.com/watch?v=zprl...

TWO recently accepted papers on arxiv today from our group, led by PhD students @maddielam.bsky.social and @astrotoole.bsky.social. If you like brown dwarfs, variability, clouds, aurorae and/or magnetic spots there is something here for you! 👀

arxiv.org/abs/2603.24662
arxiv.org/abs/2603.24663

Huge congratulations to @hayleybeltz.bsky.social on being a part of the 2026 class of NASA Hubble Fellowship Program Sagan Fellows! Very well deserved, and I'm looking forward to your continued studies of the effects of 3D MHD on the atmospheres of exoplanets.

A top climate scientist just resigned from NASA. Here's why Climate scientist Kate Marvel talked to Scientific American about her decision to leave NASA amid federal government turmoil and funding challenges

Thanks to @drkatemarvel.bsky.social for speaking with me this morning about why she decided to leave NASA, the work she was doing, her concerns about federal science and also what gives her hope. 🧪

I realize this is not a universally held preference, but I just want to point out that For $10 billion we could have orbiters and probes to both Uranus and Neptune, and they would likely succeed at that price tag, unlike this venture

If you haven’t already, might be a good idea to prepare to have your electronics seized and copied.

I really, really need academic organizations to think more critically about travel (conferences, talks, and meetings) during the Trump administration. Sadly, most are not.

Actual quote from recently, in a class test where AI wasn't allowed: "But how can I write code without AI?" 😐

Watching ChatGPT do your homework is *not* learning. A lot of students are vibe studying through their degrees and not gaining basically any knowledge of what they're doing

Happy birthday to me! And what an amazing birthday present, 112 hours of JWST time to observe the emission spectra of 9 hot Jupiters! Looking back at previously awarded programs, I think this might be the largest number of hours awarded to a UK PI to study exoplanet atmospheres!

I hope @astrojake.bsky.social found a pub.

A second visit to Eps Ind Ab with JWST: new photometry confirms ammonia and suggests thick clouds in the exoplanet atmosphere of the closest super-Jupiter With JWST, we are directly imaging cold (~200-300K), solar-age giant exoplanets for the first time. At these temperatures many molecular features appear and water-ice clouds may condense and affect th...

Beautiful new direct imaging of the exoplanet Eps Ind Ab with the #JWST MIRI coronagraphs by Elisabeth Matthews of @mpi-astro.bsky.social et al - confirming previous detection of ammonia in its atmosphere, and suggesting the presence of water ice clouds. Great work! 🔭 arxiv.org/abs/2603.08780

Cover of "Picture an Astronomer: Best Practices for Retaining Talent in Astrophysics", which features an illustration of a 19-year-old Vera Rubin looking through a telescope over a backdrop of a first light image of spiral galaxies from the Rubin Observatory.

Happy International Women's Day!

Perfect time for me to (re)share our white paper on increasing the retention of women in professional astrophysics (really full of suggestions that broaden participation in academic science in general).

arxiv.org/abs/2512.24465

🧪🔭☄️👩‍🔬

Do you already have a Masters? Do you want to do a PhD in exoplanet radial velocity surveys with me at Macquarie University in Sydney?

Then have I got an ad for you!

People switching from ChatGPT to Anthropic are telling on themselves. Will they now cancel their Claude subscriptions because it was used to help plan the attack on Iran? They won’t and we all know it.

"We want the murder software to murder accurately" isn't the absolution everyone seems to think it is. Anthropic is enacting a huge PR campaign and too many people are helping them

When a company in an industry built on hype tells you that a use case is a bad idea—and actually dangerous—that means it’s a *catastrophically* bad idea.

Head in the Silicate Clouds - Sarah Moran and Elijah Mullens YouTube video by BOWIE+ Seminars

There are lots of aspects of silicate clouds in substellar objects that we don't often think about. Luckily, Sarah Moran (@offallingstars.bsky.social) and Elijah Mullens are here to fill us in on the interesting details. #exoplanets #astronomy

www.youtube.com/watch?v=XYWZ...

Elsie is a rockstar! I’m so excited to see what she will do in the retrieval game! I’ve been doing offline comparisons between my code and Elsie’s code and it it SO GOOD!

and that, my fellow academics, is one reason not to hire war criminals: so they can't show up years post (their) war arguing in favor of the scaffolding behind their own atrocities with the imprimatur and status of your university

If Congress maintains high levels of science funding, but ruling party apparatchiks control the granting process, then what happens is corruption.

Science is effectively defunded, and a bunch of rich Republicans are suddenly buying more houses and jets.

Weird ‘Little Red Dots’ in space are something we’ve never seen Astronomers are racing to understand mysterious ancient objects that pepper James Webb Space Telescope images

What are JWST’s Little Red Dots? Astronomers may finally have an answer www.scientificamerican.com/article/what...

Starting this Friday, four separate #JWST programmes will be exploring physical processes in Jupiter's atmosphere and ionosphere. We're asking amateur astronomers to help provide context imaging over the next few weeks to understand how the atmosphere is changing with time. #planetaryscience

Using AI makes science communication worse. Period.

AI use necessarily reduces accuracy, transparency and authenticity.

But sci comm *needs* to be accurate, transparent, and authentic. Otherwise you’re just goofing around, which will destroy your audience‘s trust in you and in other sci comm.