By mapping the brightest explosions in the universe, scientists may have uncovered a megastructure that defies our ...

Unsurprisingly, the media has focused on Pettit's age, as the astronaut turned 70 on the very day he returned to Earth. At ...

Since at least 2016, a rumor has circulated online that "a speck of dust is halfway between the size of" an atom and Earth.

A radical initiative for its time, the Metre Convention ultimately birthed a system of measurement that would transcend ...

The Biomass mission will use a long-forbidden part of the radio spectrum to see how much carbon forests capture.