🎂 Happy Birthday! Carnegie astronomer Vera Rubin was born on July 23, 1928. She saw that stars at Andromeda's edge orbit as fast as those near its center—evidence of dark matter holding things together. Our special birthday logo is based on Andromeda, naturally. 👉 bit.ly/4fxYgty

Happy birthday to Robert S. Woodward—Carnegie's second president and "the first modern manager of science." His portrait is Object 18 in our #Carnegie125 series. Learn how his approach got Andrew Carnegie to double down on his investment in science. ⬇️ bit.ly/4yyTk0c

We've got another cool find from our archives! 🔭 In 1968, a Carnegie team hiked a bare Chilean peak above the high Atacama to decide if it would be a good home for an observatory. This collection of photos captures their trip. Object 17 in #Carnegie125: bit.ly/4fl8Jsg

A team led by @harvard.edu's Collin Cherubim & including Carnegie's Shreyas Vissapragada caught helium leaking from the atmosphere of a rocky planet orbiting in its star's habitable zone—making LHS 1140 b the first exoplanet with an atmosphere that could hold liquid water! 💧 🌏 🤯 👉 bit.ly/4pq6Yif

🎉 Our first-ever Pop-Up Store is LIVE—new designs, limited time only; closes August 3. Shop here👇 https://cspopupstore.itemorder.com/shop/home/ #CarnegieScienceSwag

We made the cover! 🌌 Research by a team including Carnegie's Jeff Rich appears on the June cover of @NatureAstronomy. The team used chemical fingerprints to reconstruct 12 billion years of NGC 1365’s history. Keep reading: https://bit.ly/4pk8gLp

Beyond telescopes, Carnegie's Las Campanas Observatory brings astronomy to communities across Chile through school visits, teacher training, accessible resources, dark-sky education, & hands-on science programs. Read “Beyond the Telescopes: Science in Service of People”—bit.ly/4pgB47M

Join us in welcoming the #CASSI2026 interns! 🔭✨ These 16 undergrads will spend their summer at the Observatories for a paid, hands-on research experience spanning exoplanets, black holes, stars, galaxies, and gravitational waves. Meet the cohort👇 bit.ly/4fuG0Cx

🗞️ Extra, extra! Our outreach and education edition has landed in inboxes. See how we’re connecting discovery w/ communities near and far. Don't miss out on breaking discoveries and inspiring science stories. Subscribe today👇 https://bit.ly/4aLhs5A

Carnegie biologist Devaki Bhaya spent a decade teaching @stanford.edu students to read trees—blue oaks, cork bark, a redwood once thought extinct. Join her on a farewell tour of her favorite trees before she heads west to @caltech.edu.👇 carnegiescience.edu/trees-stanford-weave-rich-tapestry

On July 5, 1945, a report landed on President Truman's desk that changed U.S. science forever. Written by Carnegie president Vannevar Bush, Science: The Endless Frontier became the blueprint for the NSF & U.S. research policy. Learn more about Object 16 in #Carnegie125 👉 bit.ly/44PLj9x

🔭 Pasadena might just be the astronomy capital of the world—and Carnegie's Jeff Rich wants every kid who grows up there to know it. His goal: every student meets a real astronomer before they graduate. Inflatable planetarium and all. Read the full story 👇 https://bit.ly/4vocbZg

Happy 250th, America! 🎆 Object 15 in #Carnegie125: a 1944 TIME cover of Carnegie president Vannevar Bush, who convinced the nation that science is core to its strength. We've carried that spirit for 124 years. Here's to 125 more! #FourthOfuly Explore this story: https://bit.ly/4y1bjfp

Fireworks? That's cute. For the #FourthofJuly, our volcanologists exploded a trash can. For science.💥 🦅 Liquid nitrogen + soda bottle + a truly patriotic number of ping-pong balls = one surprisingly accurate model of a volcanic eruption. 🌋 📖: https://bit.ly/3SDnGhL 🎥 bit.ly/4wqHSSI

Exploding a Trash Can to Explain Volcanoes

YouTube video by Carnegie Science

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Step right up! In the 1920s and 30s, our Annual Exhibition brought D.C. face-to-face with the frontier of research: half-million-volt sparks, blood cells under the microscope, fossil leaves fresh from the rock. Explore Object No. 14 in our #Carnegie125 series: https://bit.ly/4xSq83Y

We're proud to announce that, after 14 years as a Trustee, Cristián Samper (@bezosearthfund.org) has been elected Chair of our Board of Trustees. The Board also elected quantum physicist Mark Jackson (@quantinuum.bsky.social) as a new Trustee. Read More: https://bit.ly/4vJpx3e

Some #WWII artifacts sit behind glass; this one still sits under coats. An #OSRD label ties this unassuming coat rack back to when our D.C. office became the command center for American science under Carnegie President Vannevar Bush. #Carnegie125 🔗 carnegiescience.edu/object-13-osrd-coat-rack

If you've ever had to memorize the chemical intricacies of photosynthesis, imagine trying to map it out from scratch. bit.ly/4e5wsNP Object No. 12 in our #Carnegie125 series. 🌿

Carnegie Science@carnegiescience.bsky.social · 2mo ago

This oil painting of Herman Spoehr watched over Carnegie's Plant Biology library at Stanford for decades—a fitting post for the man who spent 40 years watching over American #photosynthesis research. Object No. 12 in our #Carnegie125 series: https://bit.ly/4e5wsNP

This oil painting of Herman Spoehr watched over Carnegie's Plant Biology library at Stanford for decades—a fitting post for the man who spent 40 years watching over American #photosynthesis research. Object No. 12 in our #Carnegie125 series: https://bit.ly/4e5wsNP

To learn what distant 🌟or 🪐 are made of, astronomers read hidden signals in their light. From IR to UV, every molecule leaves a signature. It takes the whole range to read the universe. This month, let's celebrate the full spectrum—in our cosmos & community! 🌈 carnegiescience.edu/universe-color

Meet a scientist who treats the ocean like a giant, slow bioreactor. 🌊🦠 This #WorldOceansDay, learn how Carnegie's Emily Zakem studies the invisible marine microbes that help drive the ocean's carbon cycle and shape Earth's climate. 👉 carnegiescience.edu/meet-emily-zakem

🌊 Happy #WorldOceansDay! The ocean shapes our weather, our climate, and nearly all life on Earth. But here's a question the experts can't agree on: where did all this water come from?👇 https://carnegiescience.edu/where-did-earth-get-its-water

For Jeffrey Dukes, fieldwork looks like a 30-year conversation with a thousand-acre preserve in the California foothills. #Fieldwork #Ecology Read the story: carnegiescience.edu/what-place-remembers

Today in #AstronomyNews, a team led by Carnegie's Andrew Newman used #JWST and gravitational lensing 🔍 to peer into the heart of an early-universe galaxy and directly measure its dormant black hole—a cosmic first! Full Press Release: bit.ly/3S4TbAR

🧭 In 1907, a Carnegie "magnetician" named Harlan Wilbur Fisk boarded a ship for Bermuda with a magnetometer, an observing tent, and a mystery to solve. #Carnegie125 🔗 carnegiescience.edu/object-11-bermuda-cahiers

Next week, we'll be listening to #Bermuda in stereo for the first time! Follow along on the @CarnegiePlanets Instagram for behind-the-scenes looks at the fieldwork, science, and story of this mysterious volcanic island. #CarnegieBEST Learn more 👇 carnegiescience.edu/bermuda-under-surface

Magic happens when geographers get together with astrophysicists!! Thank you so much to @carnegiescience.bsky.social for visiting us during our Geodesign Summit and discussing ways that "geospatial" + "digital twins" can apply to "cities of stars" and the telescopes that discover them! #GISchat 🧪

POV: Jeff Rich is about to fit the universe into your classroom 🌌✨ Happy #InternationalDayOfPlanetariums! Inside our portable planetarium, kids explore the Solar System, go stargazing in Chile, and travel in time—all from their own classroom. 🔭✨ Learn more: https://bit.ly/3PqHHGY #Carnegie125

One of our most beloved of our educational initiatives fits inside the trunk of a car! The Inflatable Planetarium is the ninth object in the #Carnegie125 series. We sat down with Outreach Coordinator Jeff Rich to learn more. Read the full Q&A👇 carnegiescience.edu/object-9-inflatable-planetarium

🤯 🏝️ Want to know the REAL mystery of Bermuda? At a recent #NeighborhoodLecture, #CarnegiePostdoc William Frazer took us beyond the triangle to one of the strangest puzzles in modern geology: Why does Bermuda even exist to begin with? Good news, we recorded it for you: bit.ly/4tUuhlK