For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

Astronomers have made a groundbreaking discovery with the identification of TOI-715 b, a super-Earth exoplanet located 137 ...

The newly discovered world is called GJ 251c and it is a super-Earth orbiting a red dwarf star less than 20 light-years away.

While researchers say they've found a potentially habitable planet, it'll take a new generation of telescopes to figure out ...

Earth" less than 20 light-years from our own planet is offering scientists new hope in the hunt for other worlds that could ...

It's just 18 light-years away: a super-Earth named GJ 251c with a minimum mass about 3.84 times that of our own planet. The ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.

Earth still only has one true natural satellite — our 2,159-mile-wide moon oribiting about 239,000 miles away. However, ...

In a first, researchers have discovered fragments of Earth's precursor that contain distinctive chemical fingerprints in ...