The White House has appointed Harvard astronomer Avi Loeb to lead a new scientific advisory team investigating unidentified ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

Do you remember when they said that in space, no one could hear you scream? The tagline for the cult classic Alien movie has, in a way, become a tagline for the whole subgenre of science-fiction, at ...

Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our skywatching newsletter ...

Donald Trump has nominated former Oklahoma state trooper Lance Schroyer to run US immigration enforcement and has vowed that, ...

Astronomers may have witnessed one of the rarest and most dramatic cosmic events ever seen: a long-sought intermediate-mass ...