Questions about what the federal government may know about extraterrestrial life in the cosmos — or possibly even here on ...

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year, the possibility continues to grow. But what would happen if we actually ...

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

For decades, astronomers have chased fleeting hints that something alive might be lurking beyond Earth, only to watch each candidate fade under scrutiny. Now a distant world called K2-18 b has ...

The afternoon of 7 August 1996 isn’t a time that sticks in many people’s minds. But if things had worked out differently, it might have been etched into our collective memory. At 1.15pm, US President ...

Clean-up in Area 51: Obama forced to clarify his claim that aliens exist - ‘Statistically, the universe is so vast that the odds are good there’s life out there,’ Obama said, as he explained his theor ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...