Astronomers don’t have to work hard to find binary stars in the Milky Way. They’re common, even abundant. For a long time, ...

Astronomers have finally pinned down both the mass and distance of a solitary “rogue” planet, a world that drifts through space without the warmth or light of a parent star. The object, a Saturn-sized ...

Add Yahoo as a preferred source to see more of our stories on Google. (AFP/Getty) Scientists have spotted a “rogue” planet floating on its own through space. Most of the planets we know are found ...

Imagine a world where the Sun never rises. A planet that doesn’t even have a sun. A place with no pastel-painting-sunsets and no dawn choruses, just a constant veil of faint stars twinkling in a ...

New simulations suggest binary star systems may be ideal for planet formation, and may produce more gas giants than ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a habitable exomoon. (NASA GSFC/Jay Friedlander and Britt Griswold) Planets drifting unmoored through ...

A team of researchers has uncovered nearly 70 rogue planets in our galaxy, the largest group ever discovered, according to the European Southern Observatory. Rogue planets are described as "elusive ...

Scientists now have direct evidence that a planet — not just failed stars — can rove the galaxy after a violent expulsion from its orbit. - NASA / JPL-Caltech / R. Hurt illustration Astronomers have ...

Astronomers have detected a massive, lonely world drifting through the darkness without a star to call home. This Saturn-sized rogue planet was discovered by an international team of scientists using ...

Scientists have spotted a “rogue” planet floating on its own through space. Most of the planets we know are found orbiting as part of a star system, with one or more suns, just like our Earth and the ...