"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

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

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks posed by UFOs ...

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security ...

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.

Somewhere in the Mojave Desert, a gleaming white dome sits in the middle of nowhere, and the story behind it is stranger than ...

Three companies will receive a total of $600 million to executive four moon landings, laying the groundwork for a planned ...

NASA's daring Swift Boost mission launches June 27 to save the nearly 22-year-old Swift observatory , which is being dragged ...

A one-of-a-kind NASA space telescope is about to fall out of the sky. For more than two decades, the Neil Gehrels Swift ...

Scientists say bad space weather may be one reason alien tech signals have not reached our telescopes in a usable form, after ...