The Relativistic Heavy Ion Collider , the largest particle collider in the United States, collided its last particles in early February. RHIC is a massive accelerator ring and set ...

At Brookhaven National Laboratory on Long Island, the Relativistic Heavy Ion Collider has powered down for the last time, ...

When the universe first burst into being, all of space was a cosmic cauldron filled with a roiling, fiery liquid of fundamental particles heated to trillions of degrees. But this seething primordial ...

The largest particle collider in the US, the Relativistic Heavy Ion Collider (RHIC), has ...

Before the RHIC shut down, it was the only operational particle collider in the U.S. and one of two heavy-ion colliders in the world, the other being the Large Hadron Collider at CERN in Switzerland.

Just after 9 a.m. on Friday, Feb. 6, 2026, final beams of oxygen ions—oxygen atoms stripped of their electrons—circulated through the twin 2.4-mile-circumference rings of the Relativistic Heavy Ion ...

After a decade of construction, the new-and-improved super Pioneering High Energy Nuclear Interaction eXperiment (sPHENIX) is officially ready for science as it passes a key “standard candle” ...

The Large Hadron Collider is going to be shut down — not permanently, but for a pretty long time — and the famous atom smasher’s eventual final retirement is also something that top scientists are now ...

A single subatomic particle that hit Earth in 2023 carried roughly 100,000 times more energy than anything humanity has ever produced in a particle collider. It was a neutrino, one of nature’s most ...