An image taken by Curiosity last month has sparked claims of a long-lost civilization on the Red Planet after some spotted a ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

A rather outlandish claim that an alien gun was spotted in a photo taken on Mars 12 years ago has drawn attention.

Nasa's latest Mars discovery brings us closer to finding alien life. Perseverance has found deep deposits of complex carbon ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

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When a scientific controversy or breakthrough dominates headlines, press officers and journalists often quote a handful of ...