Astronomers just measured the mass of a free-floating planet without a star for the first time ...

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...

"Star Trek" remains a science fiction classic, and it's often been a cultural bellwether for our future. These are 10 times ...

Even though these characters only appeared in a single episode of a "Star Trek" series, they left an unforgettable mark on ...

Across the Milky Way and beyond, planetary systems appear to fall into a few recurring blueprints, and recent exoplanet ...

Readers Edition. This is the (nearly) annual tradition of you, RPS readers, telling us where we went wrong in our annual ...

SANTA CRUZ — Xi Zhang, a professor of Earth and planetary science at UC Santa Cruz, has discovered that an exoplanet classed ...