After venturing farther into space than anyone in history, four astronauts on NASA’s Artemis II are set to splash down in the ...

"It's 13 minutes of things that have to go right," NASA said of the reentry and splashdown, the first with astronauts from the moon in over 50 years.

Researchers pinpointed the purpose of mysterious heart neurons in mice—and humans have them, too When you get up out of a chair, your blood pressure instantly increases to compensate for the movement ...

Orion will slam into Earth's atmosphere at more than 30 times the speed of sound, in what NASA expects to be the most ...