Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

New photos show off NASA's newly constructed Roman Space Telescope, which will soon help researchers unravel the mysteries of ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...

The sun sure has woken up this week, unleashing a powerful X-class solar flare on Jan. 18 that hurled a colossal, fast-moving ...

If aliens from space can die and mourn their dead then they likely invented gods to worship. Because they missed their loved ...

The SYFY miniseries Childhood's End, based on Arthur C. Clarke's alien invasion novel, has an ending that you won't be able ...

Particles from Earth’s atmosphere have been carried into space by solar wind and landing on the moon for billions of years, mixing into the lunar soil, according to a new study.

A powerful flare has unleashed a severe solar storm that could cause auroras and satellite disruptions on Earth.

He said he was not "afraid" of using American troops on the ground in Venezuela. At a Mar-a-Lago news conference Saturday morning, hours after he ordered a military strike in Venezuela and the capture ...