A final technology demonstration from the California company should clear the way to fly astronauts.

Physicists have put a limit on the warmth—and therefore the mass—of dark matter, the mysterious substance that makes up about a quarter of our universe.

Satellites continue to monitor the Philippines volcano which has experienced a lull in activity.

This teenager found a new planet on the third day of his internship at the US space agency.

New research determines that stardust from the Murchison meteorite is the oldest solid material ever found on Earth.

"This is the first time we have been able to determine when such a merger happened."

Scientists analysing a meteorite have discovered the oldest material known to exist on Earth.

To create gamma ray bursts, the universe's brightest explosions, stars need to be part of a binary system, researchers say.

Thanks to NASA's TESS spacecraft, scientists have discovered two amazing new worlds: A potentially habitable exoplanet and one with two suns.

Astronomers say the coming interference from satellite mega-constellations needs rapid solutions.