The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun ...

The Orion crew module gets stacked onto the Space Launch System in preparation for the upcoming Artemis 2 mission in early ...

"Comets Lemmon and SWAN soar millions of miles away from Earth, beaming with auroras and airglow, in these celestial images ...

A NASA satellite image shows a volcano on Russia’s Kamchatka Peninsula that has awoken after more than 400 years of slumber.

NASA releases unseen 3I/ATLAS images following the US government shutdown. Discover why this ancient interstellar visitor is ...

Smithsonian's educational travel program was one of the first of its kind when it debuted nationally in 1970, and it quickly ...

From measuring one's mass to boosting the almost 1 million pounds that comprise the entire orbiting complex, the Expedition ...

A rare alignment between Earth and Saturn will make the gas giant’s rings appear so thin that they’ll be nearly invisible.

A towering first-stage booster for an upgraded version of SpaceX's Starship rocket suffered a predawn testing failure in ...

A newly upgraded version of SpaceX’s Starship rocket suffered an apparent failure during a ground test early Friday in South ...

It may not have been a massive fireball, but SpaceX now has more work to do before it can kick off this next-generation ...

For investors, this convergence of geopolitical urgency, innovation and accelerating demand is creating a ...