This video explores the uncomfortable possibility that the biggest obstacle in finding alien life is not distance, but ...

In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word ...

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’ ...

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C.

The Tiangong space station approaches Tycho Crater in stunning amateur transit footage.

Relive the best Saturday morning cartoons from the 90s. These 14 cartoons entertained millions and defined an entire ...

Scientists now believe life may be found on the notoriously inhospitable planet of Venus – but they believe it will have come ...

Adaptations aren't created equal and here are five science-fiction novels that deserve way better movie adaptations than what ...

What time is the SpaceX Falcon 9 rocket launch from Cape Canaveral, Florida? Best places to watch from Vero Beach to Fort ...

Look to the west to catch Venus and Jupiter shining bright, with Saturn and Mars visible in the east for early risers, and ...

Three companies will send scientific payloads to the lunar surface to support NASA's first permanent base development.