A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Earth’ planet that may be suitable for life - The exoplanet, which has been named HD 20794 d, orbits in the ‘habitable zone’ ...

UK researchers have confirmed the existence of a “super Earth” located 20 light-years away that could reveal the existence of ...

For millennia, humans have asked whether we are alone in the universe, yet the discovery of aliens still eludes us. But if ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.

BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

Stargazers, prepare for the parade of planets that will take place over the next few nights in the sky. Here's what you need ...