The first all-female spacewalk in history won't be happening this week after all due to a last-minute crew swap, NASA announced today (March 25).
A few brief hops in the Martian air two years from now could open alien worlds to an entirely new kind of exploration.
Scientists hunting for signs of alien life shouldn't be so quick to dismiss carbon monoxide, a new study suggests.
Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecraft already in travel.
The Milky Way stretches across the early-morning sky in these glistening views captured by astrophotographer Sérgio Conceição in Campinho, Portugal.
The documentary "14 Minutes From Earth," which just premiered on Netflix, shows the secrecy behind, and the excitement following, the highest free-fall jump ever.
Trailing sparks between their wingsuits, the Red Bull Air Force swept into Los Angeles from above on Thursday (March 20) to celebrate the third and final supermoon of 2019.