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

Astronomers have found two planets around two separate stars that are succumbing to their stars' intense heat.

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

From January to March, the night sky will host a spectacular parade of planets featuring Venus, Mars, Jupiter, Saturn, Uranus ...

Meeting of the American Astronomical Society, two teams of astronomers—centered at Penn State and MIT—independently announced ...

SCIENTISTS have discovered a new super-Earth with an ‘eccentric’ orbit that swings it in-and-out of its star’s habitable zone ...

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

An object we thought belonged to the most common category of planet in the galaxy has turned out to be something we've never ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

The Red Planet reaches its best position all year this week on January 15. Here’s how and when to get out and see it.

It just so happens that the bright planets are currently visible from the night side of Earth. Venus is currently in its “evening star” apparition ... grow in apparent size as it moves ...