SLAC

#OTD 25 years ago, the DONUT 🍩 collaboration at @Fermilab detected a tau neutrino for the 1st time! But a discovery 25 years prior (by physicist Martin Perl at SLAC) made it possible - alerting the field to the existence of this most elusive particle: bit.ly/4lMQiyw

Ever been to a party so good you couldn’t stop talking about it? Same here 🥳 #RubinFirstLook was unforgettable, and made even more incredible thanks to 360+ Watch Parties around the world celebrating with us on June 23! Enjoy this trip down memory lane with us 🤩

15 computer simulations attempted to model the photochemical reaction of a molecule exposed to light. 💻 ⚛️ Our X-ray laser captured the real thing with atomic resolution to determine which simulation did it best: stanford.io/3IAUKSp

#DidYouKnow that @ENERGY offers paid internships for undergrads at its National Labs? The Science Undergraduate Laboratory Internship program is now open for applications for the spring 2026 term: science.osti.gov/wdts/suli

Mission: Jurassic 🦕 SLAC has a history of studying ancient fossils. From feathers & an Archeaopteryx “dino bird” skeleton to a collection of plants, tracks, and bones over 150 million years old, our X-ray light source can reveal some of their mysteries at an atomic level.

Rubin's thousands of newly-discovered asteroids....now in your web browser! Introducing NSF–DOE Rubin Observatory's 3D Orbitviewer ☄️🪐 Follow along as Rubin discovers millions more asteroids in our Solar System in the coming years at orbitviewer.app 🪐

Romance is in the collider 💕 The CMS and ATLAS experiments at @CERN’s Large Hadron Collider observed an unforeseen feature in the behavior of top quarks that suggests that these (heaviest of all) elementary particles form a fleeting union! Learn more: bit.ly/4kyG2bZ

Molecular movies in high definition 🎥 This animated molecular movie made with SLAC’s electron camera captures in atomic detail how a ring-shaped molecule opens up in the first 800 millionths of a billionth of a second after being hit by a laser flash: stanford.io/4eI2oq3

On this Independence Day, we celebrate the freedom to innovate, discover, and lead. @ENERGY’s National Labs are powering America’s future with science, security, and a competitive edge. #DOENationalLabs

Happy discovery day! 🥳🎉🍾⚛️ The Higgs boson was discovered #OTD in 2012! SLAC builds and operates detector components for ATLAS, one of two experiments at @CERN'S Large Hadron Collider that were involved in the discovery of the Higgs particle.

Upgraded X-ray Laser Science: Radiation Effects Some of the first experiments harnessing the new capabilities of our LCLS X-ray laser could help us better understand how radiation impacts aging, can lead to cancer, corrodes machinery, and deteriorates electronics:

We advance discovery through our partnership with @Stanford, using massive data from SLAC-built instruments to drive innovation, including unique AI tools applied to quantum materials, astrophysics, and ultrafast science. #DOENationalLabs

Already July?! Oh my! It’s time for another edition of our monthly newsletter, Signals. Learn the latest from the lab, spanning the first images from our LSST Camera to the first attosecond X-ray atomic laser: bit.ly/4lDRQL3

It's not too late to RSVP - join us tomorrow at 7pm in Hewlett or online to learn more about the groundbreaking images from @VRubinObs!

Did you hear⁉️ More than 2,000 new asteroids have already been discovered by @VRubinObs - and we expect to find millions more! What could be better for #InternationalAsteroidDay? ☄️

Think you can spot a comet? ☄️ Try your eye with the *very first* citizen science project on @the_zooniverse that uses data from NSF-DOE Rubin Observatory, Comet Catchers! We can't think of a more fitting project for #AsteroidDay 🤩 ☄️ cometcatchers.net ☄️

Who was Vera C. Rubin? 💫 Vera Rubin is the namesake of @nsf-@doescience Rubin Observatory, but how much do you know about her?

It’s the world’s largest selfie! Or at least, a collection of selfies in the shape of the world’s largest camera focal plane. You sent your selfie, we made a massive group photo celebrating our LSST Camera and @VRubinObs for #NationalCameraDay.