Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

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

Scarlett Dargan imagines this week's generational debate ...

An interstellar comet that passed through the Solar System last year may be up to 12 billion years old – far older than the ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?

Could Martian mudstones be holding evidence of ancient microbes? New findings strengthen the case that the Red Planet once ...

The main focus of the trip is to study the effects of long-term spaceflight on the body, but the test is also a side mission.