This is such a cool finding--the oldest direct evidence of poisoned arrows. Poisoned hunting weapons were a game-changing innovation for our ancestors. Absolutely incredible that researchers found traces of plant toxins on these tiny arrowheads from 60,000 ago 🤯🏹 🧪

May I recommend this lovely long read, from one of my favorite writers on the planet, @annfinkbeiner.bsky.social, about the strange and surprising explosions astronomers are discovering in the night sky 🧪

Just a reminder that this year's Geminids meteor shower peaks tomorrow night! Do you have a plan to try to catch the spectacle?

If you've been thinking of subscribing to Scientific American, or gifting a sub, now's the time -- it's 50% off! sciam.com/getsciam/

Holy moly: The Nancy Grace Roman Space Telescope construction is completed! That's fantastic news — much needed right now — and I am very much looking forward to when this beast launches. It has 100X the field of view of Hubble. One. Hundred. *At the same resolution*. www.nasa.gov/image-articl...

Is ESA benefitting from increased international partnerships and funding due to countries/orgs looking to it rather than to a less stable/less well-funded NASA? "I think the answer is yes, in short." - David Phillips of @esa.int at #Appleton2025. Canada's ESA contribution is up 400% e.g. 🧪🔭

"A fascinating exploration, packed with surprising insights & eye-opening explanations of cutting-edge physics." — @clarakm.bsky.social, senior editor at Scientific American James Riordon's book "Crush" takes readers on a memorable tour of gravity. Available now: mitpress.mit.edu/978026205098...

Wouldn't it be a ginormous waste to send a rover all the way to Mars to collect rock samples for study back on Earth and then to just...abandon them? By @astrojonny.bsky.social 🧪

Have you ever heard of Betty Webster? I hadn't until recently, and she co-discovered the first black hole ever found! Here's her story, to honor her memory and fantastic accomplishment. badastronomy.beehiiv.com/p/the-woman-... 🔭 🧪

True nightmare fuel: Scientists just confirmed the first known death from a severe meat allergy caused by a tick bite. The man, who died in 2024 after eating a burger, had alpha-gal syndrome, a bizarre disease triggered by tick bites. www.scientificamerican.com/article/man-...

I, for one, welcome our new trash panda overlords. But for real, fascinating science on how we might be seeing the very early stages of domestication in action in wild animals. 🧪 By @marinacoladas.bsky.social for @sciam.bsky.social

“Deciding the line between non-life and life is not interesting. What’s important is the process.” Great talk by Jack Szostak at #SciWri25

For what it's worth, the Planetary Society's @caseydreier.bsky.social will discuss Isaacman's renomination and other issues relating to space science policy at #ScienceWriters2025 in Chicago on Sunday, in conversation with @clarakm.bsky.social: sciencewriters2025.org/schedule/

Now on @sciam.bsky.social: After a leaked memo and a dust-up with NASA’s interim chief, Jared Isaacman’s renomination to lead the space agency portends potentially profound changes for U.S. space science and exploration. By @danvergano.bsky.social. www.scientificamerican.com/article/nasa...

Russia's nuclear missile is a very bad idea, by @danvergano.bsky.social

It's never aliens. By @astrojonny.bsky.social www.scientificamerican.com/article/did-...

Don't forget to look up tonight! 🧪 youtube.com/shorts/4XYp0...

The very strange math that shows how if you combine two losing strategies you can...win?!? 🧪 www.scientificamerican.com/article/parr...

Lol the Nobels can't even acknowledge women's contribution to discovery. But sure let's acknowledge The Machines.

Now on @sciam.bsky.social: This year’s physics Nobel goes to 3 researchers who demonstrated quantum tunneling on a superconducting chip. By bringing this microscopic effect into the macroscale world, they laid important foundations for quantum computing. www.scientificamerican.com/article/2025...

Finding order in chaos by @lyndie.bsky.social 🧪 www.scientificamerican.com/article/math...

Maybe dark energy is completely different than we imagined: @rboyle31.bsky.social 🧪 www.scientificamerican.com/article/is-d...

Day 25 #SciArtSeptember prompt tireless: 🧪🐡👩🏼‍🔬 #histsci Kathleen Lonsdale DBE FRS (née Yardley, 1903-1971) who solved a longstanding #chemistry conundrum of the shape of benzene, here with her drawing of electron density for hexachlorobenzene (green) & model of hexamethylbenzene. Her husband said, 🧵

This is a truly wild caper by @danvergano.bsky.social on the disappearance of the El Ali meteorite: www.scientificamerican.com/article/insi...

Some interesting sociology of space news to watch with the NYT dropping a fairly thin, but obvious piece by one of their anointed today www.nytimes.com/2025/09/20/u... saying the obvious: NASA's SpaceX lunar landing plans are unlikely to work anytime soon despite a lot of U.S. chest beating. 1/n

Ever wonder what happened to that $100 million interstellar spaceship program? Me too. www.scientificamerican.com/article/the-...

Great writeup by Sarah Scoles @sarahscoles.bsky.social on the apparent demise of Breakthrough Starshot

In 2016 billionaire Yuri Milner held a star-studded press conference where he pledged to spend $100 million to send the first spaceship to Alpha Centauri. But almost a decade later, Breakthrough Starshot doesn't have much to show for itself. What happened? @sarahscoles.bsky.social reports 🧪

Oh this is very cool #MathNerds

The LIGO project is one of the coolest things going, and the Trump admin wants to effectively cancel it. Here's hoping it can keep on making amazing discoveries like this one 🧪

LAST CHANCE! 📸 Join the #SciAmInTheWild photo challenge! 🎁 You could win an Unlimited subscription to Scientific American—plus exclusive prizes for your next adventure. ⌛ Hurry! Contest ends September 5 at 11:59 p.m. ET ⚠️ Terms & Conditions apply. See rules for entry: sciam.com/180contest

For our anniversary, an ode to our enduring fascinating with quantum mechanics for 100 years and counting by @jacklinkwan.bsky.social www.scientificamerican.com/article/what...

Today, Scientific American turns 180—the oldest continuously published magazine in the U.S. 🎉 Since 1845, we’ve shared the wonders of science with the world. 💫 Dive into 180 years of discovery: sciam.com/180 🧬 Explore pivotal moments in science: bit.ly/4mNTpGY 🎁 Win prizes: sciam.com/180contest

Happy birthday Scientific American! I am proud to have contributed, by coincidence, nearly 180 articles to the magazine. Here's the one I wrote honoring the anniversary. www.scientificamerican.com/article/scie...

Today marks 180 years of @sciam.bsky.social! I've been here for nearly 12 years and I couldn't be prouder to be a Scientific American. Here's my favorite cover, and the first special issue I edited. Happy 180th! sciam.com/180

NEW: The White House wants to kill off Juno, NASA's mission to uncover Jupiter's secrets. Fortunately, its legacy is clear. Juno's a scientist, but also an artist: it revealed Jupiter as a living van Gogh painting hanging in the sky. Me @sciam.bsky.social www.scientificamerican.com/article/how-...

Which hypothetical quasiparticle would you most like to see proven to be real? Many would vote for the axion (named after a detergent because it cleans up a mess in quantum chromodynamics), but for purely etymological reasons, I'm now voting for the neglecton. 🧪⚛️ physicsworld.com/a/predicted-...

Our magazine is 180 years old and we're running a contest! Take a photo of any issue out in the world, and you could win a (legitimately) awesome prize package. I'm not eligible but can't resist, so here's my entry 🌟 #SciAmInTheWild www.scientificamerican.com/anniversary-...

AI supposedly did well at the International Math Olympiad this year, but mathematicians aren't impressed: www.scientificamerican.com/article/math...

This is just so frustrating 😡

From deep oceans to distant galaxies, every Scientific American cover is an invitation to explore. Now show us where curiosity takes you! 🤳 Enter the #SciAmInTheWild photo contest 🎁 Prizes include gadgets and gear to elevate your next adventure ⚠️ Terms & Conditions apply: sciam.com/180contest

It’s only early August but the fall migration of birds is already under way! Here’s what I’ve been seeing lately and how you can watch this incredible spectacle 🧪🪶 www.scientificamerican.com/article/how-...

I had an enlightening conversation with mathematician Hannah Cairo about how she broke a huge conjecture in Harmonic Analysis at just 17 years old, what being a transgender mathematician means to her and how math has supported her along her journey! 🏳️‍⚧️ 🌊 ✨ Read the Q&A here:

For 180 years, Scientific American covers have invited readers on voyages of discovery—from deep oceans to distant galaxies. Now it’s your turn! Capture your own moment of exploration with our photo challenge. Terms & Conditions apply. See official rules: sciam.com/180contest #SciAmInTheWild

Scientific American is turning 180! 🎉 Celebrate with us: 🎂 Explore our anniversary collection 🧩 Solve digital jigsaw puzzles of vintage covers 🏆 Stay tuned for a contest announcement tomorrow! sciam.com/180 #SciAm180

New world record longest lightning strike just dropped! 🧪 (by @dodecalemma.bsky.social for @sciam.bsky.social)

A rare celestial treat is in store tonight: two (maybe even three?) meteor showers will be visible in the early morning sky! www.scientificamerican.com/article/how-...

The first antimatter qubit probably won't mean an antimatter quantum computer any time soon, but it could just help solve one of the biggest mysteries in the universe www.scientificamerican.com/article/scie...

‘Arsenic Life’ Microbe Study Retracted after 15 Years of Controversy A controversial arsenic microbe study unveiled 15 years ago has been retracted. The study’s authors are crying foul www.scientificamerican.com/article/arse...

“I thought I would be helping people,” says Michael Pasqua, a life scientist and program manager for the EPA’s safe drinking water efforts in Wisconsin. 🧪 (by @meghanbartels.bsky.social in @sciam.bsky.social)