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

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

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

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

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 ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

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

The Trump administration selected a controversial Harvard astronomer to lead their new scientific advisory council to study ...

In a first-of-its-kind discovery, astronomers claim they have directly measured the magnetic fields of multiple planets beyond our solar system — potentially providing a crucial new tool in the search ...

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

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.