Physicists used quantum bits to achieve "perfect randomness" in a world-first experiment. The results of their research could strengthen cryptography and other security systems.

China's Long March 12B rocket has blasted off on its maiden voyage carrying more Qianfan "Thousand Sails" satellites, during a surprise launch for which there were reportedly no airspace notices.

Sigma’s 60-600mm Sport lens is one of the most versatile wildlife lenses around, but can its huge zoom range outweigh the heavy design?

Over a century after a red-lined cave wall was discovered, scientists have determined that it represents the U.K.'s oldest rock art.

Animal trials took place across Europe from the Late Middle Ages until the end of the 18th century. In this excerpt from "Cats: A History", Rod Phillips explores this strange practice, and looks why cats appear to have been largely law-abiding.

A 2015 astronaut photo shows dark-orange water that appears to bleed across the bright-white floor of a high-altitude salt lake in the Bolivian Andes.

NASA shared an initial analysis of a 5-foot-wide fireball meteor that exploded in the sky over the northeastern U.S. on Saturday, May 30.