The Buseck Center for Meteorite Studies at ASU is hiring a Deputy Director/Research Professor! apply.interfolio.com/182090

Star formation was a mistake 😏🔭 (by @xkcd.com)

The loud boom heard in Cleveland and the light seen across the Midwest and Mid-Atlantic... it was a meteor! GOES-19's geostationary lightning mapper picked up the brief flash of light.

As a reminder, there's a grass-roots community science workshop next month in Louisville, where all topics of interest and importance to the community are welcome, and the registration fee is only $300: planetaryworkshop.org

ME: pack a bag, we’re flying to kansas MY WAYWARD SON: what kind of bag

🧵1/8 In this viral clip from Cosmos Ep.1, Carl Sagan explains how Eratosthenes (276–194 BC) calculated Earth's circumference. 🔭 🧪 ⚛️ His estimate: 250,000 stadia ≈ 25,000 miles (~40,000 km). Crazy accurate for 2200+ years ago! #histsci #science

Watching the Olympic curling finals this weekend? Physicists still aren't 100% sure why the big granite stones 'curl' the way they do. go.nature.com/4rTOAOw

Wow.

🧵1/8 Reposting this thread on #KatherineJohnson —perfect timing for the International Day of Women & Girls in Science on #Februar11, and right in the heart of #BlackHistoryMonth. Her story just blows me away every time, showing how one person's grit ... #WomenInSTEM #HistSci #WomenInScience 🧪 🔭 ⚛️

TIL that funk legend Bootsy Collins not only made way more music I love than I realized, he also created Funk University in 2010 to teach bass, history of funk, etc. Unfortunately I can’t find current information on it and I worry it’s now defunked.

Yes, we talked to a geologist who curls about the very special geology of curling's stones, please enjoy

Somehow these guys didn’t get that the world in Back to the Future II is the one that sucks.

CORY AND KOREY ARE GOING TO THE GOLD MEDAL MATCH!!!!! They beat Italy 9-8 on the final shot and the USA will play Sweden for mixed doubles curling gold! STAND UP EVERYBODY WHOSE NAME IS A VARIATION OF "COREY"

Great thread breaking down a lot of the details of that epic halftime show:

🧵1/19 Picture a 25-year-old Italian guy who, in 1926, changed #physics ⚛️forever—paving the way for computers, smartphones, & understanding #stars. 🔭 This is #EnricoFermi & his famous “statistics.”🧪 Let’s walk through the story from Florence to “fermions,” 100 yrs later. ➡️ arxiv.org/abs/2602.04484

I agree, but by any definition my birth year (1970) is pretty much peak Gen X. And in true Gen X fashion, I think we, as a generation, kinda suck.

Five concerts you’ve seen with female lead singers Joan Jett and the Blackhearts Garbage Suzanne Vega Alannah Myles B-52s Twice (soon)

Esto de @danielpazahora.bsky.social está más vivo que nunca.

Ruin a song by changing one letter: Duran Duran’s “The Reflux”

Photo by Pierre Lavie. Yes this is me. And I threw my Leica. It landed on the bass plate with hardly a scratch. Another Photographer grabbed it along with my phone and I was able to track him later. I was held face down tear gas deployed right in front of me and pepper sprayed directly into the eye.

Ixion Left: Lapith Right: Plutino arxiv.org/abs/2601.09639 Kilic et al., Astronomy & Astrophysics, in press

It’s time to stop the influx of immigrants who take drugs, father children out of wedlock, and steal from the government. by Elon Musk

🧵 In a 2025 study, Guanming Liang and Robert Caldwell of Dartmouth College propose a new theory for the origin of dark matter (DM). ➡️ home.dartmouth.edu/news/2025/05... Graphic by Midjourney/Richard Clark 🔭 🧪 #cosmology #science 1/11

Very cool! It should also break one Harvard astronomer’s heart to learn this is not a 20 km- diameter object. Since we’d expect to see thousands of smaller comets for each comet that big, this wouldn’t be an interstellar comet. But, turns out, it’s a smol, D=1 km, statistically likely what? COMET.

INTERSTELLAR COMET #3IATLAS IMAGED TODAY IN ITS CLOSEST APPROACH TO #EARTH. It keeps its inner coma activity with waving jets, and the intense antitail. We explained its transitional nature from spectra and photometry. Outreach: t.co/K0xqGPy1fX Research preprint: t.co/MAVDRxLowC #PlanetarySciences

Picture a stellar newborn that, between one hiccup and the next, launches jets of gas at insane speeds, leaving behind a trail of rings like footprints in the cosmos. 🔭 That's the story told by the recent discovery on SVS 13, a protostar... ➡️ www.almaobservatory.org/en/press-rel... 🧪 #Science 1/9

The name "Popular Science" doesn't mean we shift our coverage depending on public opinion. It means we cover relevant subjects that are rigorously researched, reliable, and grounded in reality. And trans lives are grounded in reality. We see y'all. No matter what. www.popsci.com/science/tran...

All you ever wanted to know about what meteorite tell us about Solar System Formation! Check out the newest @issibern.ch book ⬇️ #planetSci

I get these emails often. I'm not that kind of doctor. We are honored to invite you to be a Speaker with the speech topic "The breakup of a long-period comet is not a likely match to the Chicxulub impactor" at the 13th International Congress of Gynaecology and Obstetrics (ICGO-2026 Asia).

Happy Hanukkah to our friends who celebrate. Rachel Posner, a rabbi’s wife in Kiel, Germany, took this photograph in 1931 -- a potent reminder that fascism must be fought in every generation, even if it's wrapped in an American flag and a red hat.

Great article (in Spanish) about scientists who pass to the Dark Side, destroying science from within, the psychology of it, and the irresponsibility of our media in promoting it.

It's funny to have to make this case but tbqh we don't make it enough: human efforts to counter fossil fuel use have had *at least some* effect on total greenhouse gas emissions since the signing of the Paris Agreement in 2015, and there's some evidence to back up this position A lil thread 🧵

Interesting but I think off the mark. It presumes 26Al isn’t inherited from molecular cloud because rare inclusions have low 26Al/27Al and “predate” 26Al. But as cited PP7 chapter & Desch+2023 explain, it’s a chemical heterogeneity. 26Al was always there, no need to make it: arxiv.org/pdf/2307.07750

Hubble reobserved interstellar comet 3I/ATLAS on November 30. At the time, the comet was about 178 million miles (286 million kilometers) from Earth. Hubble tracked the comet as it moved across the sky. As a result, background stars appear as streaks of light: https://go.nasa.gov/4iCU2lH 🔭 🧪

Thanks to Chris Young at Interesting Engineering for the chance to contextualize 3I/ATLAS. I would have preferred two thumbnails of the comet itself, but... enjoy. interestingengineering.com/space/3i-atl...

¿No crees en la colonización? Este es nuestro cielo. Corrección: este era nuestro. Todos hemos perdido un poco. ¿Quién gana?

You can’t spell FAIL without AI.

Every now and then you find a science piece that is both razor-sharp and genuinely funny. “Avi and the Content Factory” by @deschscoveries.bsky.social is one of those rare gems—a brilliant piece of scientific satire. Highly recommended—for...⤵️ ➡️ medium.com/@steve.desch... 🔭 🧪 #science 1/5

Brandy you're a fine girl What a good wife you would be But my life my love and my lady Is the See

this is what honor actually means

I helped Professor Dave lay out exactly how Avi Loeb has manufactured doubt and pushed a false narrative about 3I/ATLAS, which is still an interstellar comet. Please enjoy the video and please repost this to share the word. www.youtube.com/watch?v=lf9o...

I’ve defended USRA/LPSC against boycotts just because it’s in Texas. It’s important to maintain community and continue science. But I cannot abide this *eagerness* to comply. What good is science funding if scientists aren’t free to even talk about how to do science and how to get the best talent?

I really hate it when scientists keep saying that “we need to rebuild trust in science,” because it implies that scientists are to blame for the mistrust rather than the millions of dollars of dark money that have funded political attacks on science in order to advance a far right agenda.

Thank you! I’m trying to keep it classy.

Thanks to Chris Young at Interesting Engineering for the chance to contextualize 3I/ATLAS. I would have preferred two thumbnails of the comet itself, but... enjoy. interestingengineering.com/space/3i-atl...

No, or maybe they get a token quote of objection. Modern media aren’t there to inform. Truth hardly matters. They are there to collect your clicks and eyeballs. For that Loeb is catnip. I blame the media the most, as in this satirical rant. medium.com/@steve.desch...

quote o the week “He’s the Terminator, if the Terminator’s job was misconstruing ice and rocks in space to be aliens.” — Steve Desch @deschscoveries.bsky.social

A reminder that the Face on Mars isn't