After almost two decades of searching, a team of physicists in China says it has observed strong evidence of a mysterious particle called a glueball, which is made entirely of force-carrying particles ...

The Colorado Bureau of Investigation received and processed a record number of background check requests for gun purchases last month ahead of a new law that took effect Saturday prohibiting people ...

In a new Nature Physics study, researchers accelerated electrons to more than twice the energy predicted by the traditional dephasing limit for laser-plasma accelerators operating over the same ...

For Sunday's latest updates on the Bug Fire, click here. 9:45 p.m. update: Truckee Meadows Fire Protection District said no structures have burned in the Bug Fire. The number of acres burned is around ...