Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

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

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

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

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

Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

A new study conducted by researchers at the SETI Institute suggests that space weather conditions around stars could be ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...