Artificial intelligence (AI) is continuing to have a disruptive impact on ever more parts of humanity. But what does it mean ...

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

Following a decision from the U.S. Supreme Court to uphold birthright citizenship, Republicans and the Trump administration ...

Without course correction, experts warn, it cannot be overstated how much of what the country has achieved could be lost.

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

Harvard astrophysicist Avi Loeb, known for his controversial extraterrestrial theories, is now leading a new Trump ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

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

A Chinese probe is set for a historic touchdown on asteroid Kamoʻoalewa, which may have been blasted away from Earth’s Moon ...

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White ...

CoRoT-2 b is a hot Jupiter 696 light-years away whose thermal hotspot is shifted in the wrong direction. New VLT data suggests the reason is its unusually slow rotation.