Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks are enormous.

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

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

The question of whether humanity is alone in the universe has fascinated scientists for generations, but few have pursued an ...

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

A controversial Harvard University cosmologist who has suggested alien lifeforms could be sailing into the solar system disguised as meteors is leading the Trump administration’ ...

Avi Loeb vows to brief public and create website to share findings of team tasked with investigating origins of mysterious ...

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...

When Andreas Albrecht was a grad student at the University of Pennsylvania, he was looking for an advisor in particle physics ...