The new image, which shows Earth along with an even smaller point of light coming from the moon, harkens back to Carl Sagan's ...

The triple star system is sending comets, asteroids and meteors our way, and the number of interstellar objects entering the solar system will rise.

Most planet-forming disks have warps that can lead to planets on inclined orbits, which could explain where the tilt of Earth's orbit came from.

These strange objects could explain how water arrived on Earth, but may also be a previously unrecognised threat to our ...

A pair of planetary scientists simulated how our solar system might have evolved if it had a super-Earth orbiting where the asteroid belt is today. The results are enough to make you grateful that ...

Earth sees strong aurorae Oct. 10 as solar storm hits ‘severe’ G4 level Aurorae may be visible tonight as far south as Alabama, and high-frequency radio impacts have already been reported.

Our solar system consists of four small, rocky, inner planets (Mercury, Venus, Earth and Mars) and four large, gaseous, outer planets (Jupiter, Saturn, Uranus and Neptune).

Earth is so far the only known planet on which life exists—with liquid water and a stable atmosphere. However, the conditions were not conducive to life when it formed. The gas-dust cloud from which ...