Moons orbiting rogue planets, worlds flung from their parent star systems into the cold of interstellar space, could maintain ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a planetary system with four planets, around a small red star, called LHS1903 with a large reddish-brown ...

Astronomers have recently uncovered a remarkable planetary system around the faint orange star WASP-132, featuring two exoplanets that couldn’t be more different. One is a rocky world that completes ...

There is a category of planet that belongs to no star. It was thrown clear of its solar system early in the chaos of ...

By Will Dunham WASHINGTON, March 16 (Reuters) - Astronomers have spotted a planet orbiting a star in our neighborhood of the ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery challenges long-standing ideas about how planets form and orbit in the cosmos.

This illustration shows an exoplanet orbiting around two brown dwarfs –– objects bigger than gas-giant planets but too small to be proper stars. ESO/M. Kornmesser Astronomers have discovered a ...

Sky-gazers will have the opportunity to see six planets in the sky on Saturday, weather permitting, according to NASA. This planetary parade occurs due to the alignment of the planets’ orbits around ...

Over the next several nights in the Philadelphia region, through its peak on Friday, we will have the opportunity to see all seven of our sister planets simultaneously and in a straight line, parading ...