K2-18b is one of the most promising worlds for the search for extraterrestrial life, so astronomers conducted an unusually ...

Former Pentagon UFO investigator Luis Elizondo claims the US government possesses unreleased photographs showing what appear ...

Scientists suggest the Moon could act as a quarantine checkpoint before samples from Mars are brought back to Earth.

The Apple TV series wraps noir inside science fiction. With subtlety and charm, Farrell plays an earnest alien just doing his ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

A new study proposes examining Mars and other space samples on the Moon before bringing them to Earth, arguing it would ...

The scientist has outlined the 'potentially devastating and irreversible long-term impacts' of unknown organisms in space ...

NASA’s Viking 1 lander set down in the Chryse Planitia region of Mars. Its identical twin, Viking 2, followed on Sept. 3 of ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Canadian astronaut Jeremy Hansen is leaving the Canadian Space Agency following his historic Artemis II lunar mission, the ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...