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

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and ...

The ‘Martian dichotomy’ is one of the Solar System’s greatest mysteries – but new research in closing in on a solution.

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

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

A world-leading designer of space robots says gigantic new rockets being tested by billionaires Elon Musk and Jeff Bezos are ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

The solar system consists of 8 planets, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Each ...

HELENA — The planets are aligned. Six planets, Mars, Jupiter, Uranus, Neptune, Venus and Saturn can be seen in the night sky.