Although astronomers have directly imaged a few dozen gas giants on the scale of Jupiter, Earth-sized planets are too small and dim to be directly imaged. That's not to say there's a shortage of Earth ...

How any Earth-sized exoplanets exist, and how do we find them? This is what a recent study published in The Astrophysical ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A super-Earth basks in the glow of its star in this artist's impression. Is the world habitable ...

What if humanity could no longer live on Earth? Perhaps a catastrophic event forced us to find a new home among the stars.

Astronomers and philosophers have long speculated on the possibility of planets orbiting distant stars. In the 1990s the first of such objects, now called exoplanets, were discovered by astronomers.

CAPE CANAVERAL, Fla. — Scientists have found a planet way out in the cosmos that’s close in size and content to Earth — an astronomical first. But hold off on the travel plans. This rocky world is so ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...

It's hard to remember now, but there was a long period of time in which scientists weren't sure how many planets might actually exist throughout the galaxy, much less how likely it might be to find a ...

A huge "super-Earth" with an extreme climate that results in it being habitable for only part of its orbit has been discovered orbiting a star 2,472 light years away. And the most remarkable thing is, ...