A look at the idea of searching for signs of pollution beyond Earth.

15 years after the original made horror history, Alien: Isolation 2 is back to haunt your dreams. With an unkillable monster ...

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

Some frogs have evolved features so strange that scientists struggle to explain them, and a few look less like amphibians ...