On May 18, an asteroid about the size of Chicago’s Cloud Gate will fly four times closer to Earth than the moon.
This is the first time NASA has encountered a situation like this, and it took nearly a week to resolve.
The Defense Department has released a new trove of declassified documents about government UFO sightings.
Between the night of April 21 and the early morning of April 22, those looking in the right place will see the sky light up with 15 to 20 meteors per hour.
Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out.
The White House has announced that NASA will work with the Departments of Defense and Energy to put nuclear reactors in orbit and on the surface of the moon.
From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and living safely—beyond our planet.
After traveling a greater distance from Earth than any humans before them, the astronauts of Artemis II have safely returned home.
Entire space programs have been canceled after a failure in the reentry phase. In the final test for Artemis II, astronauts will travel at 32 times the speed of sound as they return from the moon.
Splashdown for the Artemis II crew is scheduled for Friday evening, and NASA will livestream the historic homecoming.