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

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

The NASA Opportunity Rover has once again sparked fascination after one of its older images resurfaced online, reigniting speculation about unusual objects scattered across the surface of Mars. While ...

The strangely shaped object - snapped by NASA's Opportunity rover - has resurfaced and reignited wild theories about little green men on the Red Planet ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

There is no chance in hell our species will be able to reach another Earth-like planet in the Universe in the foreseeable future, so the only way we can get a sense of the habitability of such places ...

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

As far as Tuesdays go, NASA had a pretty good one. Astronomers announced the discovery of 1,284 new planets. The planets are orbiting distant stars way outside our solar system and are known as ...

Astronomers have identified more than 10,000 candidate planets in data from a NASA telescope, the most ever found in a single haul. NASA’s Transiting Exoplanet Survey Satellite (TESS) was launched in ...

A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to ...