NASA

The Apollo 11 mission to the moon was one of humanity's most incredible feats, but it almost didn't happen.

There will never be another "first book annotated by hand on the moon."

That may be true for the short missions astronauts have gone on so far. But Mars will be a different story.

A team of Chinese researchers hasve won a NASA competition to design the best- possible method for humans to spread across our galaxy.

Something dark is spreading across the surface of Titan, and physicists have a new piece of evidence to explain what it is.

This technology demonstration mission that could transform the way humans explore space.

Such a mission would have to keep two spacecraft, separated by thousands of miles, aligned within 3 feet of each other.

A NASA mission to an ancient iron-nickel hunk has entered its final design phase, a key milestone on the way to reaching the distant destination in the mid-2020s.

This vacation is completely out of this world.

In NASA's new treasure map of the universe, X-ray marks the spot.

The asteroid will pass close enough to Earth that, with some preparation and a decent telescope, amateur astronomers may spot it blotting out the stars.

Jupiter's magnetic field has changed since the 1970s, and now physicists think they know why it's happening.

The good news is, we can do something about it.

We'll have to deflect a space rock someday. It's just a question of when.

Ultima Thule is weird.

China plans to build a scientific research station on the moon in 'about 10 years' according to a state news agency.

A space rock called Bennu is getting its close-up: NASA's OSIRIS-REx mission to explore the asteroid has entered a new phase of detailed survey work.

The InSight Lander has been listening for marsquakes since December.

SpaceX tested the escape system on its Crew Dragon capsule. Smoke from the failure was visible for miles.