Particle physics news, features and articles
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![null](https://cdn.mos.cms.futurecdn.net/SGpcmv39672Q3NXsgBYcb5-320-80.jpg)
Mystery of Weird Sky-Glow Named 'STEVE' Finally Solved
By Mindy Weisberger last updated
Enigmatic STEVE is somewhat like an aurora...and somewhat different.
![Atoms consist of a nucleus made of protons and neutrons orbited by electrons.](https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-320-80.jpg)
Where do electrons get energy to spin around an atom's nucleus?
By Paul Sutter published
Quantum mechanics explains why the electrons can keep spinning indefinitely.
![An abstract drawing of particles with squiggly waves](https://cdn.mos.cms.futurecdn.net/UkxPtSXvUeozonb439LxT6-320-80.jpg)
Physicists discover never-before seen particle sitting on a tabletop
By Robert Lea published
This newly-discovered particle could account for dark matter.
![A portion of the 17-mile long particle accelerator that makes up the LHC](https://cdn.mos.cms.futurecdn.net/LYbj44hmXGFK73gu4ZTYrH-320-80.jpg)
Large Hadron Collider breaks new record only days after it reopens
By Scott Dutfield published
It only took the LHC days to break its own record after it reopened.
![A strontium lattice optical atomic clock](https://cdn.mos.cms.futurecdn.net/ku3kuzToKPTwbSZwoL4wTc-320-80.jpg)
Ultraprecise atomic optical clocks may redefine the length of a second
By Tia Ghose published
The length of a second hasn't been updated in 70 years, but ultraprecise atomic optical clocks are on track to change that.
![Here, the Large Hadron Collider is shown on April 22, 2022, the day the atom smasher restarted again for Run 3 after a three-year nap.](https://cdn.mos.cms.futurecdn.net/NQvkD8CJgQ7tyd2twZJ9ej-320-80.jpg)
What is the Large Hadron Collider?
By Adam Mann published
The Large Hadron Collider is the world's most powerful particle accelerator. Here's a look at the atom smasher and all its amazing discoveries.
![The Large Hadron Collider at CERN.](https://cdn.mos.cms.futurecdn.net/FR8sNkFA3Z96tMQkAKcYM7-320-80.jpg)
Large Hadron Collider is waking up after a 3-year nap, and it could help explain why the universe exists.
By Mara Johnson-Groh published
After a three-year nap, the world's largest atom smasher is waking up and getting ready to smash atoms harder than ever.
![Gamma-ray bursts observed by the Large Area Telescope (LAT) on NASA’s Fermi satellite during its first decade. Credit to NASA/DOE/Fermi LAT Collaboration](https://cdn.mos.cms.futurecdn.net/V4qN2PrE93eCbXpjtuC3gM-320-80.jpg)
What is electromagnetic radiation?
By Jim Lucas published
Reference Electromagnetic radiation is a form of energy that includes radio waves, microwaves, X-rays and gamma rays, as well as visible light.
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