Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

"I'm becoming much more optimistic that we may be able to find life beyond Earth, even in our own solar system." ...

The final milestone in construction was reached on November 25, as technicians carefully joined the giant telescope's inner ...

Samples collected from the asteroid Bennu are continuing the shed light on the origins of the solar system and how life ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

NASA's advanced space observatory known as SPHEREx is on its cosmic journey to solve some of the universe's biggest mysteries. The space telescope, which NASA has spent years developing, launched ...

NASA's Goddard Space Flight Center in Maryland is facing controversy over potential building closures. Here's what's been ...

NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their ...

On Dec. 14, 1962, NASA's Mariner 2 spacecraft flew by Venus. [‘On This Day in Space’ Video Series on Space.com] The Mariner 2 ...

NASA’s CGS releases the MAGE model to improve space weather prediction, providing simulations of solar storms, auroras, and ...

Russian Soyuz crews are now spending eight months aboard the space station instead of six to stretch supplies and lower costs ...