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 ...

One dusty New Mexico summer rewired how America looks at the sky.

Avi Loeb, a cosmologist who studied black holes and served as head of Harvard’s astronomy department until 2020, will lead a ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

This is the story of a mysterious finding in New Hampshire, pieced together from the incident summary sheet and official ...

An associated set of gigantic vertebrae belonging to the iconic extinct megalodon, or megatooth shark, that had been missing in action since the 1980s was discovered, providing new information about ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...