The final version of our Dawes Review on the Dynamic Radio Sky is now published! doi.org/10.1017/pasa... Everything you need to know about what causes radio transients: how we detect them, the history of radio transient surveys, and what new widefield radio telescopes will do. #RadioAstronomy 🔭☄️🧪

Two things have happened: the community hasn't reassembled to the same degree here, and that lots of astro groups are now internally using Slack and Discord for discussions instead of social media. That's pretty much killed it off, IMHO.

www.scientificamerican.com/article/the-... Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social

The light shines in the darkness, and the darkness has not overcome it. And that light is true life 🎄✨

1/ It's press day!🔭🧪 We apply a grid of time-dependent physical models to explain TRAPPIST-1 flares, predicting the X-ray & UV flux driving escape and photochemistry in planetary atmospheres, and correcting flare contamination in transit spectroscopy down to ~60 ppm: www.colorado.edu/today/2025/1...

Voyager needs to avoid Vidiian space? Problematic phage gap.

✨ Exoplanet Atmospheres 2026 registration & abstract submission are officially open! Join us in Denver (16-20 March 2026) for an unforgettable AAS Topical Conference Series! 👉 Abstracts due 19 December: aas.org/meetings/exo... 👉 Early registration ends 13 January: aas.org/meetings/exo...

Nature published a research highlight on our RZ PSc exocomet paper: www.nature.com/articles/d41...

An attempt to stitch together my images of the aurorae above Longs Peak last night to show their dynamic and changing nature. Images are spaced about 10 seconds apart 🔭🧪

So uh, the sky above Boulder got better. A lot better, including some beautiful columnar structure 🧪🔭

Just took these of the sky above Boulder right now. Longs Peak in the foreground🧪🔭

I recommend this article by @meghanbartels.bsky.social and @leebillings.bsky.social for folks who are looking for *factual* information about why 3I/ATLAS is of interest to planetary astronomers: www.scientificamerican.com/article/the-...

And it's a wrap: one PI and six co-I proposals submitted (and then a nice Boulder autumn run!) #JWSTCycle5

Gibson et al. “TESS Discovers a Second System of Transiting Exocomets in the Extreme Debris Disk of RZ Psc” showing 24 exocomet transits and the existence of a broken power law for the sizes of these exocomets, unlike Beta Pic’s exocomet distribution #exoplanet #astrodon #astrosci

The GRFP announcement from NSF cuts out an entire cohort of 2nd year students from consideration, without warning. This is so deeply unfair that it warrants a formal protest from the scientific community. If someone wants to work with me to craft an open letter and solicit signatures, LMK.

Great breakdown of the new T1e results:

Paper #1 led by @jhuartssciences.bsky.social graduate student Jay Chittidi here: arxiv.org/abs/2509.02825

Neat! @flarelord.bsky.social used ground-based photometry to measure the flare temperature on an M7 dwarf. How do you measure temperature without spectroscopy? Trick question! You use the Earth's atmosphere as a prism and watch the star appear to jump across the sky. 🔭🧪 arxiv.org/abs/2507.19584

summer project presentations from Ryan and @adalyngibson.bsky.social at the @michiganstateu.bsky.social MidSURE conference today!

Sixty-four House members have signed a letter to NASA's acting administrator, Sean Duffy, asking him to "ensure no actions are taken at NASA to implement the proposed funding cuts" to science in the FY26 proposal until Congress passes a spending bill. foushee.house.gov/imo/media/do...

It has coma. No large telescope has seen anything but coma. Paper after paper on the arXiv with this

Is the interstellar object 3I/ATLAS alien technology? No, but it is an exciting addition to the population of exocomets that come to us, enabling a better understanding of these objects usually observed from afar. We should focus our efforts on what these objects really are, not what they aren't.

ROSES 2025 is out!

Here once again for all your exoplanet host star emission spectrum needs.

Enjoyed the “Let Freedom Run” 10k in Louisville, CO this morning! Too hot for PRs, but lots of fun.

STScI just sent out approvals for NHFP budgets. I hope this means the likelihood of continued funding for STScI guest observer programs on JWST and HST just went up.

🧪🔭 1/ AU Mic is the very best early M-dwarf. It's got everything: it's bright, nearby, has strongly-observable planets, a debris disk, spots, and flares. Since the system is basically Disneyland for astronomers, I propose renaming it AU Micky, "Oh boy!"

Astronomy research just received a major endorsement 🔭 www.thetimes.com/uk/religion/...

....meanwhile, in Chile....the 39-meter (128-feet) Extremely Large Telescope (ELT) project is humming along. Note the white pickup truck in the upper left, for scale. Amazing.

Everyone needs to make some calls on Monday. Here's a helpful guide: aas.org/advocacy/get...

The cool, rainy conditions helped me finally break the 49 minute 10k time (48:59 min) yesterday in the #BolderBoulder10k -- a Boulder classic and lots of fun!

AAS JOURNALS AUTHOR SERIES Meredith MacGregor @mmacgreg.bsky.social (Johns Hopkins University) chats with Frank Timmes about her article on Proxima Centauri: youtu.be/sf_hA1u0fUE This series connects authors with their article, their human story & the larger #astronomy community. #TheGoodStuff 🔭

Got to see Kate hooded this week, and got an unexpected visit with my former thesis advisor Nick Law and to meet old and new members of his group, and hear lots of exciting updates on Argus Array!

#NSF funded a critical 3 years of my grad studies (at a time when I was almost forced out of the field). It is the reason I was able to finish my PhD.

Reductions in US physics and astronomy graduate admissions this year are about twice the size of the ones that occurred during the COVID-19 pandemic: pubs.aip.org/physicstoday...

Senate Commerce Committee chairman Ted Cruz starts this morning's session discussing Jared Isaacman's nomination to be NASA administration, saying he supports the nomination given Isaacman's commitment to returning to the Moon.

Nice view while prepping for a fun stellar flares working meeting at NSO today!

🧪🔭 What a gut punch. Many of us (self included) have invested and sacrificed so much into developing compelling astrophysics Small Explorer concepts for this year's draft AO. These proposals require years of lead time to put together, which is a major time investment for an ECR 😭

Nice to see this research note on K2-18b from @astrojake.bsky.social, which demonstrates that a flat line (i.e. no spectral features) is a good fit to the MIRI data. #exoplanet 🪐 🔭 arxiv.org/abs/2504.15916

And also one of the reasons for the historicity of the women's experiences, which is not something the male gospel writers would have come up with or included otherwise.

I successfully defended my undergraduate honors thesis and was awarded the degree designation Magna cum laude in Astronomy–Astrophysics. I’m incredibly grateful to my advisors, Dr. Adam Kowalski and Dr. Adina Feinstein, for their exceptional mentorship and support.

Congratulations to Pa Chia Thao for successfully defending her PhD thesis today on the discovery and atmospheres of young planetary systems. #exoplanets #exoplqnet #jwst ⭐️🔭🧪🌌 To my knowledge, Dr. Thao is the first Hmong to receive a PhD in astronomy in the US.

Phew-- HST proposal is in! Here's hoping for some cool multi-wavelength flare observations 🧪🔭

Loving the public lecture by Prof. Zach Berta-Thompson (UC Boulder) @aspenphysics.bsky.social on The Glow of Distant Worlds. I’m especially enthralled by the IR camera, projector spectrum, and terrarium demos!

Welcome to the new NHFP fellows!! I'm excited to see so many incredible scientists joining the program 🧪🔭 And if you didn't get it this year, please know you are doing amazing work too!

Just gotta say: Numba is the best thing that's happened to my Python code in a long time! numba.pydata.org

"But the goal isn’t just getting men to use their influence—it’s about redistributing power so that women’s voices carry the same weight without needing male validation." www.colorado.edu/asmagazine/2...

Major congratulations, Dr. Kiana Burton and @mmacgreg.bsky.social !!! Such an exciting result 🤩

Not quite the Blacker Tuesday I was hoping for, but I'm so glad one co-I flare proposal made it through!

Here's an easier-to-digest @uarizona.bsky.social press release about our newly published article! news.arizona.edu/news/how-nex... 🔭🪐🧪👽 cc: @stewardobservatory.bsky.social