Texas Senator John Cornyn announced a $1 billion MARS Act to upgrade NASA's Johnson Space Center to better support ...

A red supergiant star transitions into a type II supernova in this animation. Credit: W. M. Keck Observatory/Adam Makarenko | mash mix by Space.com's Steve Spaleta ...

"It took three unsuccessful attempts before we got it right, but when we did, it appeared exactly as we had imagined it; as a ...

This NASA/ESA Hubble Space Telescope image features a sparkling cloudscape from one of the Milky Way's galactic neighbors, a ...

The data revealed that gas from HW2's accretion disk is collapsing inward at breakneck speed, feeding the star at an ...