Artemis II, Revenant Body Art, Santa Clarita, California. Artist, JP

Artemis II could take flight to the Moon as early as next month, giving ham radio operators an extra incentive to follow this mission. Three of the four crew members are licensed hams—and you might even have Glover or Wiseman in your log from the ISS!

Members of Congress: stop posting online and APPEAR, PHYSICALLY on the steps of the Capitol to decry this unconstitutional violation of domestic & international law. SHOW THE PEOPLE the level of danger we are facing as a country. @housedemocrats.bsky.social @senatedemocrats.bsky.social

Can't help but feel like this is one of the reasons why the Constitution says If a dude in office does an insurrection, don't let that motherfucker hold office again Bc clearly they cannot be trusted with power & control over the levers of government, & they do not care about democratic constraints

People are going to try and lure you into debates about whether Maduro was a good guy or not and the thing is, it doesn’t matter for the purposes of discussing whether violent kidnappings and extrajudicial murders by the US government are ok. No, they aren’t! End of convo.

You’d think the Pentagon would learn to order from their own cafeteria by now.🙄

Goddammit it I just got online

Since this story is making the rounds again: a reminder that the Chinguetti (mesosiderite) meteorite was analyzed for cosmogenic radionuclides and noble gases (by Welten et al. 2001), and everything in that analysis suggests it was once part of a ca. 1 m sized meteoroid that fell to Earth 18 ka ago.

My favorite stretch of interstate is I-40 between Albuquerque and Flagstaff, taking you through spectacular cuts of the Navajo Sandstone.

I grew up in a suburb of Albany NY, went to high school in Albany, took a bus past the Capital every day. It's wild for my feed today seeing so many posts using "Albany" as the power center that Mamdani is prodding for progressive change. It feels weirdly personal but also personally compelling.

From all of us here to all of you out there, Happy New Year. Science First !

just so it's clear: this is the exact core function of genAI Fascist government and climate deniers love it because it can produce the aesthetics of knowledge without any actual tendency towards truth. It is automated denialism. Shame on every climate scientist promoting its use (there are lots)

On 13 February 1990, from a distance of 6.4 billion km, NASA's Voyager 1 spacecraft turned around and photographed our homeworld. About halfway up on the right side is a tiny speck of light, about one pixel across. "That's home. That's us. A mote of dust suspended in a sunbeam." —Carl Sagan

The destruction of knowledge and history is haphazard & breathtaking. NASA’s Largest Library Is Closing Amid Staff and Lab Cuts.

“You can’t just get these things online,” said Dr. Williams...Older material hasn’t been converted to a digital format, while many recent scientific & engineering journals and texts are behind a digital paywall and will be harder to access from outside the library. #histsci #histSTM #humanities 🗃️📜📚

Who up forgetting they auld acquaintance

My parents banned MTV so naturally it's all I wanted to watch at friends' houses. Talk Talk's It's My Life was my gateway music video, with the animated elements over wildlife footage and the singer just staring like he is burning the song into your head. youtu.be/cFH5JgyZK1I?...

If you have an online store or prioritize buying from small businesses over Amazon, read this thread.

Stop. Read the post below. Do what it says. Look at Earth - our home world - from the surface of Mars. You are a terranaut on that fragile planet. This moment brought to you courtesy of NASA Science.

Just watched the new Knives Out and I think it's really important you know that the scene in the Seminary's Gym is filmed in the same place Rick Astley filmed the music video for Never Gonna Give You Up. I saw the window tracery and immediately made my friends pause the film so I could tell them.

Taking the time to be immersed in the literature is sooooo important for forming connections and looking for the gaps. It's why I ask my postdocs to start writing papers with mini-reviews. It's also the thing I am most sad about eroding in my career progression and in our library access.

I really, really hope everyone posting about having a cold or the flu feels better soon, but I really, really, REALLY hope you're all testing for Covid. Even if it wouldn't change how you treat yourself, it could make a difference in how dangerous you are to others. Please test & isolate if needed!

Next time someone says they don’t have to apologize for being white anymore, ask them to tell about the most recent time they were forced to apologize for being white and who made them do it.

My dog got me a chewed stick for christmas. I appreciate the gesture but I wish there was a polite way to say "we don't need to get each other gifts any more." My cat got me a pipe bomb

It’s simply not possible to overstate how important NCAR is to US and world science. We need to fight this with everything we’ve got.

🧵 NSF is reducing external review requirements and eliminating routine expert panels, citing staff shortages that this administration implemented. This change expands program officer authority. But the solution to flawed accountability isn't less public accountability.

that's when I tore open the shutters and threw up

Before the Artemis II astronauts lift off on their journey around the Moon next year, find out what it's taken to build their mission from the ground up. Episode 1 of Moonbound is up! It's free to watch on NASA+: go.nasa.gov/4pxIoel

I honestly think that many people don't know what their public libraries offer besides books. I think that everyone should go on a public library treasure hunt in 2026. Go explore what your library systems offer at no cost to you. Report back to me :)

SANTA HATES ICE! It was cold up there tonight on Gorman Rd overpass (I-95 at North Laurel, MD), but all the drivers honking and waving warmed my heart! ❤️ @visibilitybrigade.bsky.social

Some More Font Upgrades, After Yesterday’s Calibri News www.theatlantic.com/newsletters/...

I usually renew my National Parks Pass in December anyway, but if you buy a 2025 pass this month, it is valid until the end of December 2026 and has a significantly more attractive Roseate Spoonbill.

BREAKING: Democrats and Republicans in Congress just voted to pass the Protect America’s Workforce Act to restore federal workers’ union rights – the first time the House has voted to overturn a Trump executive order in this term. https://bit.ly/4oNyBQc

"Trump will just defy court orders, what's even the point of litigating" This, this a point

. @profsera.bsky.social has been appointed Plumian Professor of Astronomy and Experimental Philosophy at @cambridgeastro.bsky.social 🔭 🌟 Explore more about her work with @ehtelescope.bsky.social and her new Fellowship role at @newnhamcollege.bsky.social 👇 www.cam.ac.uk/stories/sera...

Make sure to follow @nationalacademies.org. The briefing will be held at the National Academies Keck Center in Washington D.C. and livestreamed online on December 9, 2025, from 12:00 PM to 1:30 PM (ET). Register at the link above. 🧪🔭🪐 You can read more here: nationalacademies.org/humans-on-mars

Today, we'll release the results of some work and deliberation I've been privileged to be a part of. I hope it guides us all further. Remember, exploration without science is tourism :)

I was out with the LDB challenge on the Saturday after Thanksgiving, but it's taken THIS LONG to get to my 80's Heart of Christmas youtu.be/SetcTxRRycc?...

Am I above pointing out that I have music on Bandcamp on this, Bandcamp Friday? No I am not. Here's a link to the page I have with the Gedankenband. 1/

Historian of eugenics here. I don't normally like to retweet bad arguments, but this is such a fundamental misunderstanding of eugenics, I think it's important to point out. I don't have time to debunk all of the ways this is inaccurate, but I'll highlight a few things and then recommend some books🧵

Look at all of those white people standing there laughing it up. The MSM won't bat an eye and neither will most white people in this country. Again, this is an ANTIBLACK country to its core.

Here's a liveskeet 🧵 of the Isaacman hearing. Thanks @genejm1017.bsky.social

This is us.

In light of today’s conversation on academic accommodations, I’m going to revive a thread lost to time when I deleted my Twitter profile. It’s about a bunch of academic accommodations that instructors can offer in lieu of an extension on an assignment. 🧵

Another major scientific discovery from asteroid Bennu samples returned by NASA's OSIRIS-REx mission published today in Nature Geoscience. And this one is particularly sweet! www.nature.com/articles/s41...

Happy Antarctica Day! Honor that amazing place by taking a moment to breathe with my favorite Weddell seal. He wants you to feel good this week.

Today is World AIDS Day. Honor those we've lost. Fight for those with us. #WAD2025

A grassroots movement is calling on all Americans to abstain from shopping at Target, Amazon, and Home Depot during the holiday weekend over their support for Trump's authoritarian policies. I encourage you to join — and shop small. https://weaintbuyingit.com/

Today is the 70th anniversary of Rosa Parks' arrest. Six myths: 1) She wasn't old or tired. 42 years old that day, she had a "life history of being rebellious" & had spent two decades helping to turn the Montgomery NAACP into a more activist branch alongside ED Nixon and Johnnie Carr.