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

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

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

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

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

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

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

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

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

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

Pluto-Charon Formation Scenario Mimics Earth-Moon System Jan ... Dust storms on Mars could one day pose dangers to human astronauts, damaging equipment and burying solar panels.