Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

A rare visitor from deep space has swept through the inner solar system, offering astronomers a fleeting look at material ...

Could a comet from another star system carry the chemical fingerprints of worlds we’ve never seen? The arrival of 3I/ATLAS ...

A growing fleet of privately built spacecraft is preparing to attempt robotic landings on the moon as humanity's exploration ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

"How do you get to Mars when the launch vehicle is not necessarily going to Mars?" ...

Scientists have discovered 26 new bacterial species that survived the extreme sterilization protocols of NASA cleanrooms ...

Physicists discovered that the famous ‘Star Trek’ spaceship got a lot right about designing a ship to jump from galaxy to ...

The order from the U.S. Court of Appeals for the Ninth Circuit is a win for Mr. Newsom, a Democrat, who has vigorously ...