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

For anyone who has ever wondered whether they could handle life on another planet, NASA is offering a chance to find out – ...

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 ...

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

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

Chinese mission Tianwen-2 released a new image of an asteroid orbiting Earth, which is sometimes referred to as a “quasi-moon ...

Does anywhere in the country better represent this era of the American experiment than a self-governing tech-company town ...

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 ...

A Chinese spacecraft on a mission to collect and return samples of a near-Earth asteroid beamed back its first image of its ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks are enormous.