The Pentagon has studied sightings of unidentified phenomena going far back and a new report addresses some theories.
NASA has finally explained what these strange holes in the sky actually are.
Area 51 is often the center of wild conspiracy theories, but what is it actually used for?
NASA astronaut Leland Melvin had an unusual experience on one of his space missions.
A U.S. state is ambitiously expanding its tourism demographics by sending a visitor brochure to extra terrestrials in outer space.
It looks pretty terrifying, but there's a scientific reason behind the phenomenon.
It looks like a jellyfish soaring through the air - what could this strange object be?
A new book dives into xenolinguistics - the study of alien language.
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Would any messages picked up by probes make it back to Earth?
The signals from space have mystified astronomers somewhat.
These planets could have the potential to host life.
Maggie Aderin-Pocock has given a behind-the-scenes look at what really goes on in space and also spoken about the chances of alien life.
Who knows what extraterrestrials we might discover with this money.