Astronomers have discovered that sulfur may be a key to helping us narrow down our search for life on other planets.

Do top quarks, nature's heaviest elementary particle, obey Einstein's rules at all times of day and night? Scientists at the Large Hadron Collider have the answer.

Blue Origin is targeting next Tuesday (Feb. 25) for its 10th space tourism launch, which will send six people to the final frontier. You'll be able to watch the action live.

European Space Agency astronaut John McFall is cleared to be the first person with a physical disability to fly to the space station.

The idea that life on Earth arose through a series of improbable "hard" evolutionary steps may be misjudged, according to a new paper that says our Earth had a big say in matters.

The United States Space Force released the first public photo taken by X-37B space plane in orbit, showing the vehicle high above Earth.

NASA has announced the retirement of Associate Administrator Jim Free, the agency's chief operating officer for more than 18,000 employees across the United States.

A SpaceX Falcon 9 rocket launched 21 more of the company's Starlink internet satellites to orbit from Florida's Space Coast on Saturday (Feb. 8).

A mysterious flash of X-ray emission from outside the Milky Way has left astronomers puzzled.

Such a dramatic cut to a flagship space telescope still in its prime will be felt across the mission's entire operations, affecting science.