Stargazers will be treated to a dazzling six-planet "alignment" this January.

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

The Red Planet will be at its closest point to Earth, also known as perigee, on Jan. 12 and will be exactly opposite the sun ...

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled ...

The contrast between two clusters of marsquakes has led two scientists to suspect the internal structure of the Red Planet is ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a ...

Stock illustration of all the solar system's planets. Mars, Venus, Jupiter ... For best viewing, head to a location with dark skies, bringing along binoculars or a telescope to spy the dimmer ...

Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century ...