For the first half of the 20th century, one of the most important firearms in the U.S. military arsenal was the water-cooled ...

The scientists behind the MAGIS-100 experiment aim to use state-of-the-art lasers to shed light on ultralight dark matter.

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself.

The subatomic particles are incredibly numerous. About 1,000 neutrinos from stars other than the sun pass through a thumbnail every second.

Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe.