Astronomers have discovered a companion star in an incredibly tight orbit around Betelgeuse using the NASA and U.S. National ...

Betelgeuse is one of the brightest stars in the night sky, and the closest red supergiant to Earth. It has an enormous volume, spanning a radius ...

The departures are playing out as NASA and other government agencies contend with significant cuts to funding and personnel.

July 20th is Moon Day, Space Exploration Day and the anniversary of the first Apollo 11 moonwalk. Here’s a look at the Apollo ...

NASA's Athena Economical Payload Integration Cost mission, or Athena EPIC, is a test launch for an innovative, scalable space ...

For decades, scientists have puzzled over why Earth stayed warm and alive while Mars turned cold and dry. Both planets began ...