Announcing the 8th Other Worlds Laboratory (OWL) Exoplanet Summer Program, Aug 10-27, 2026. We wish to foster new and existing research collaborations by outstanding visitors, with stays of 1 to 3 weeks at the beautiful UC Santa Cruz campus. Applications accepted Feb 5-March 5.
owl.ucsc.edu/summer/
You might be interested in contacting the authors of this Nature paper: www.nature.com/articles/s41...
Years ago Adam Showman described to me his long term plan to better understand brown dwarf variability by adding more cloud physics to his GCM. Thankful today to be part of team led by his former student Xianyu Tan growing and expanding the vision with this new paper. www.science.org/doi/10.1126/...
Wow, Congratulations!!!!🎉🎉🎉🎉
✨✨✨Another Virga advert✨✨✨
Introducing V2.0, with fractal aggregate clouds! Restricted to spheres no more! We handle the dynamics and the optics self consistently.
Led by me and PhD candidate extraordinaire Matt Lodge (who is looking for a postdoc 👀 and is amazing).
arxiv.org/abs/2509.06708
A series of concentric black and white ovals against a black background, with a dim red dot in the lower left of one of the paths of a black ring. The ovals are dust rings around a young star, and the red dot is a 5 Jupiter mass exoplanet called WISPIT 2b.
Proud supervisor moment: #LeidenObservatory graduate student Richelle van Capelleveen led one of two papers on our discovery of WISPIT 2b, a 5 Jupiter mass exoplanet clearing a path in a circumstellar disk. Laird Close and his team saw it in H-alpha, indicating gas accretion #astrodon 🔭 🧪
The application to join the LPL Planetary Sciences PhD program is now open! Visit lpl.arizona.edu/admissions for more information.
I think that mass-loss is important for sub-Neptunes and the "radius valley," but I do not think that "core-powered" escape is significant. We find that "Boil-off," right when the disk dissipates, and then XUV driven escape, are major influences.
ui.adsabs.harvard.edu/abs/2024ApJ....
A reminder that LPL, along with Steward Observatory, is a host for 51 Peg b Fellowships. Whether it's exoplanet or legacy planetary science you are interested in, be sure to contact me or our faculty!
Actually heartbreaking, the list of colleagues that have run the show behind the scenes for so many years who are saying their pre-emptive goodbyes and taking literally thousands of years of amassed knowledge and expertise with them.
Not to mention camaraderie and community.
Morale is ... bleak.
Amidst all the horrific news for astronomy lately, I'm still excited to share a new work that I was a part of, led by Kielan Hoch at @stsci.edu ! Using @nasawebb.extwitter.link , we found a new circumplanetary disk and strong silicate absorption in the YSES 1 planets. www.tcd.ie/news_events/...
If you burn down a forest, you don't miss out on lumber for just that season. You have to replant all the trees, nurture them, and wait for them to grow.
The science and research budget cuts happening now are wanton, senseless arson. Recovery, if it ever happens, will take generations.
Here's what we lose if we lose Roman (by my collaborator Mary Anne Limbach) 🔭🧪
spacenews.com/im-an-exopla...
Next time anyone searches for auroras on #Jupiter, it's going to be this astonishing movie from JWST that shows up. Kudos to @jnic.bsky.social for leading this work, it was great to hear the gasps of amazement from across the office when these first landed. Another great #JWSTSolSys result.
Thank you for all your action today! Keep sharing how you are engaging in advocacy using #SaveScience and #WeekOfAction. We have many more advocacy actions to look forward to this week: aas.org/posts/news/2...
🧪 PRACTICAL tip for NSF PIs with terminated grants:
You're entitled to recover more closeout costs than a DOGE-fueled NSF may lead you to believe.
➡️ Do this NOW: Send fed reg 2 CFR 200.472 on allowable "termination costs" to your sponsored research office:
www.ecfr.gov/current/titl...
1/8 🧵
Hey 🔭 friends... I'm trying to build a complete census of high res optical spectra for nearby stars (100pc). I've got summary tables for e.g. GaiaESO, HARPS, HIRES, KPF... what other archives/tables should I be looking at?
I am not an expert in this, but this paper prefers mini-Neptune solution: arxiv.org/abs/2401.11082
It hurts.
First the rumour was a 20% budget cut. Then, 50%. Now the president's NASA budget is out and it's a 68% cut to astrophysics ($1.5B to $487M).
Even if this gets reversed in four years, we will *never* recover the missions, partners, people who will be gone.
www.washingtonpost.com/science/2025...
⚠️ Job alert ⚠️
Two faculty positions at the Institute of Astrophysics at UC Chile. All areas of #astronomy welcome!
aas.org/jobregister/...
Postdoctoral Fellowship opportunities in #astronomy at my new employer, UC Chile
aas.org/jobregister/...
If you are interested in writing a proposal to work on #exoplanets or planet formation with me, get in touch!
A blocky lambda symbol crumbles as it is pulled apart by creatures representing Baryon Acoustic Oscillations, the Cosmic Microwave Background, and supernovae. Caption reads "something has to give..." Credit: Claire Lamman
DESI's DR2 BAO results are out!!
TL;DR... 1/n
@desisurvey.bsky.social
The atomic spectral lines in this app come from the NIST atomic spectroscopy group, which has provided the world with spectroscopic measurements for 120 years.
Today we got word that the federal government is laying off the entire group. 🔭🧪
Very sad to hear of the death of my CfA colleague Bob Kurucz, pioneer of stellar atmosphere modelling, working here at Harvard/SAO since the 1960s.
The first measles death in the US in a decade -- the tragic, preventable death of a child whose parents chose not to protect them with vaccination -- should spark an immediate nation-wide campaign to ensure all children are protected against preventable diseases. Anything less is unconscionable.
Background of world map with grid overlaid. Text: "AIFS operational"
We have taken our Artificial Intelligence Forecasting System (AIFS) into operations today to run side by side with our physics-based weather forecasts. The #AIFS outperforms traditional models for many measures, at a fraction of energy use. ➡️ www.ecmwf.int/en/about/med...
#AI #MachineLearning
The Art of Planetary Science is in full swing at @uarizonalpl.bsky.social Come visit this weekend!
