Like the sonogram of a planetary system

See below if you're interested in doing a PhD on stars or clusters! Trumpler 14 is an especially awesome cluster in the Carina Nebula, and doing your PhD on it (or star cluster formation more generally) would be tons of fun 😉

I wrote a textbook! I hope you like it. store.ioppublishing.org/page/detail/...

Academics in Assyria in the 7th c BC complain that admin is preventing them from doing research and teaching

Absolutely floored to have received an award for "open and inclusive" #scicomm and outreach. I'm not usually one to broadcast such things, but I think highlighting this type of work is more important than ever. Please consider getting involved in your own communities! 🔭🧪 www.uu.se/institution/...

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... 🧪🔭☄️

Stunning video of the enormous eye at the center of hurricane Melissa. Taken by the 53rd Weather Reconnaissance Squadron “Hurricane Hunters” just before they had to abandon their mission. Melissa is extremely dangerous, the strongest Atlantic hurricane to occur this late in the season.

This!!! "you will be intellectually transformed by the process of reckoning with the knowledge these courses are about." I'd add that the memory of how this transformation *feels* is as important; I still hang onto the visceral satisfaction & pleasure of learning voice leading in AP music theory

😎 First glimpses from space! The new #Copernicus Sentinel-4 mission has delivered its first preliminary images during commissioning. Sentinel-4’s spectrometer is hosted on @eumetsat.int's MTG-S1 satellite 🧪🌍 @josefaschbacher.esa.int @ec.europa.eu @esaearth.esa.int

Seeking PhD candidates that want to do a thesis on exoplanet atmosphere retrieval + machine learning inference. Please apply by 31 October to Dr. Max Dax's and my shared project here: is.mpg.de/news/new-max... . Abstract for the thesis project is attached to this thread below!

i have to laugh

WHAT A DAY! Thank you to all of you who joined us for a fantastic #ESAOpenDay and to the extraordinary @nl.esa.int scientists and crew for lifting the curtain and getting us a step closer to space! Space truly ROCKS! 🤘🖖 Let’s do it again next year? #ESAOpenDay #50YearsOfESA #NLSW25 #SpaceRocks

If you study plants, you need this book. 🧵1/n

How can we tell what's inside an #exoplanet? @timlichtenberg.bsky.social et al review how a planet's atmosphere interacts with its interior. Atmospheric observations can distinguish between lava worlds, water worlds, temperate surfaces or supercritical interiors. ☄️ www.science.org/doi/10.1126/...

How do giant planets influence the type of #exoplanets that form in the habitable zone? A thread 1/🧵

Are you interested in working on astronomical transients/ radio astronomy, all while exploring the beautiful Pacific Northwest on your weekends? I'm hiring a postdoc! Come work for me! aas.org/jobregister/... Please get in touch if you have any questions! 🔭🧪🎢

Today's reading begins with Lise Meitner, who co-discovered nuclear fission (she wrote the paper!) and was in general an INCREDIBLE trailblazing scientist. Except, as a Jew, she had to flee Nazi Germany to Sweden and lost her professorship in Berlin. The men she worked with got the prize instead 🧪🔭

A sorry record. This is one reason I don’t care for the Nobel prizes. Three others being: 1) promotes a “great man” view of scientific progress, whereas science is best understood and celebrated as a collective, community activity. 🧪

There is still some hopeful news out there! Of course we need coal to go down... not just stay flat (but flat is better than rising...).

Sweden is not only an @esa.int founding member and a host of the Esrange Space Centre in Kiruna, but also an important contributor of Ariane 6. GKN Aerospace, based in Sweden, provides turbines and nozzle extensions for Ariane 6's rocket engines. www.esa.int/Enabling_Sup...

🔭🧪🪐Fabulous article in BBC today marking the 30th anniversary of 51 Peg b, discussing also the hunt for Earth-like #exoplanets with the Terra Hunting Experiment @terrahunting.bsky.social — can’t believe we’re so close to starting this incredible survey (later this year)! www.bbc.com/future/artic...

Almost exactly 30 years ago, the first extrasolar planet was identified orbiting a main-sequence star. Now, not only can we directly image planets orbiting other stars, but we can see planets *being born* Imagine what the next 30 years will bring.

Here’s my new paper which our last #CoolWorlds video discussed. Paper tackles two existential puzzles: why don’t we live around the most common star type, an M-dwarf, and, why do we live so early in cosmic chronology? arxiv.org/abs/2510.01215

Join us in ~1 hour if you’re interested in sub-Neptune #exoplanet atmospheres! I will be moderating the Q&A session 😊🔭🧪

Today on the arXiv: Hutsemékers et al. 2025, "Extreme NiI/FeI abundance ratio in the coma of the interstellar comet 3I/ATLAS" arxiv.org/abs/2509.26053 3I is putting out more iron vapor as it comes in closer to the Sun. Matching the carbonyl boil-off model, with extreme sensitivity to temperature.

We have found many rocky planets orbiting cool, red dwarf stars. But do these planets have atmospheres? The Rocky Worlds Director’s Discretionary Time program has 500 hours of JWST time plus 250 HST orbits to help answer that question. 🔭🧪 science.nasa.gov/mission/webb...

RIP to the incredible Jane Goodall. I learned about her (a woman scientist! They exist?!) as a precocious child attempting to learn English by reading The Far Side. She wrote the foreword to one collection after she was featured, to her delight, in a comic. The story: screenrant.com/far-side-con...

UT Austin Astro is hiring! It's an open call, but definitely interested in getting another exoplanet person! Feel free to reach out with any questions about the department or living in Austin! aas.org/jobregister/...

📢 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...

Personal milestone ✅ So proud to share this article / research, which has been accepted for publication in @pasajournal.bsky.social This is several years of my PhD work so far, so here's a little thread about it. The BIG question: Are millisecond #pulsar profiles stable? Strap in! 1/n 🔭🧪📡

New paper by me and @benjaminpope.bsky.social! How well can we map a star using optical interferometry? This is just a submitted preprint at the moment--comments and questions welcome! (1/N) arxiv.org/abs/2509.25433

Are you looking to do a PhD in astronomy? Are you interested in radio stars and exoplanets? Then you should apply to do a PhD at @api.uva.nl with me! You can find more about the exciting project below. Applications are due 3rd of November! api.uva.nl/vacancies/ph...

When an interstellar object passes close by, all eyes are on it! #ESA is making its solar system mission look at the #comet 3I/ATLAS: first #ExoMars TGO and #MarsExpress when the comet passes close to Mars and then the #Juice, currently on its way to […] [Original post on mastodon.social]

#NASAWebb has found the first direct evidence of potential moon formation around a giant exoplanet. The discovery is shedding light on how such systems evolve and why moons could be potentially habitable worlds: https://bit.ly/46xGodN 🔭 🧪

UPDATE: I AM DR BOLDT-CHRISTMAS 🥹🥹🥹

I'm hiring 1-2 postdocs this year! If you're interested in: GW astrophysics (Binary) Stellar Evolution Stellar dynamics (esp. w/ massive BHs) Galactic dynamics (inc. stellar streams) plz consider applying! You don't need letters initially, just a list of references. 🔭🧪 aas.org/jobregister/...

Here is a review article I'm giving my students that Payne-Gaposchkin wrote a year before she died, where she reflects on what's been learned on variable stars in here career. She concludes: If I were beginning again, it is there [LMC/SMC] that I should search. ui.adsabs.harvard.edu/abs/1978ARA%...

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...

We *absolutely* should celebrate it. Do your part by enjoying the 200+ page masterpiece in its entirety on ADS! ui.adsabs.harvard.edu/abs/1925PhDT... 🔭 Special shoutout to Figure 2, an incredible piece of art that I want on my wall (and suspect could even make an excellent tattoo if executed well?)

Wait a minute. Why aren't we celebrating the hundredth anniversary of Cecilia Payne-Gaposchkin's dissertation.

Would be amazing if this happened. Obviously pretty fanciful to imagine European spacecraft sending humans to the Moon and Mars, but why not? Might as well aim high, and in the face of uncertainty elsewhere it would be pretty great if Europe emerged as a major player in human spaceflight.

“In an anonymous survey of (UK Physics) department heads by the Institute of Physics (IoP), 26% said they faced potential closure of their department within the next two years, while 60% said they expected courses to be reduced.” www.theguardian.com/education/20...

🤯🤯🤯 circumstellar disk chemistry? No, circumPLANETARY disk chemistry! What an INCREDIBLE result! Check it out below ⬇️🧪🔭🪐

Discovery Links Microbial Colonization To An Ancient Meteorite Crater astrobiology.com/2025/09/disc... #astrobiology #ImpactEvent #meteorite

I've been asked a few times over the last few days what I think the chances are that the "leopard spots and poppy seeds" on Mars will turn out to be actual evidence of life. People are naturally skeptical given the history of possible signs of life on other planets. Strap in: long thread ahead...

RIP to this real one (2022–2025) who I suppose is entering forced retirement from my outreach talks after an illustrious 3-yr career 😔 🕊️ truly my MVP and I guess one I will have to replace by either making my own or hoping one gets published... I wonder how much the statistics have changed by!

The official number of exoplanets has surpassed 6,000! And you can access data on all 6,007 of them right here at IPAC 📈 🪐 Watch the video & read all about the center of the exoplanet universe (also known as NExScI!) here: www.ipac.caltech.edu/news/the-nas...

Excited to share the 1st High-Level Science Product release from the Rocky Words DDT! Each RWDDT eclipse will result in HLSPs which you can use for preliminary science investigations or as a starting point for your own reduction/fit. Awesome work by Tyler Baines, Achrène Dyrek, and the RWDDT CIT 🪐🔭

Sometimes 2025 just feels like a lot, and you need an excuse to celebrate your fabulous team (and the whole exoplanet community!) reaching a new milestone… Happy 6,000 Confirmed Exoplanets Day, everybody!!!! (You may recognize the narrator of the video at the link! 🫣) www.nasa.gov/universe/exo...