If you look across space with a telescope, you’ll see countless galaxies, most of which host large central black holes, billions of stars and their attendant planets. The universe teems with huge, ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. There are currently more than 5,800 known planets beyond the solar system. Artist Martin Vargic ...

In the end, the Universe becomes a place where gravity and quantum physics slowly turn all mass into faint streams of particles.

Huge, red "super-Jupiter" exoplanet orbits its star. Since astronomers first looked beyond the solar system three decades ago to discover extrasolar planets, or exoplanets, we've known that planets in ...

Planets are about as scarce as they can be in our summer evening sky. Earth is the only one that’s visible as darkness falls. Just look down instead of up. All of the major planets that are visible to ...

Each planet is a little different on the inside. And what’s inside a planet can shape what’s on the outside, too. That’s what I found out from my friend Steve Reidel, a geologist at Washington State ...

On Earth, diamonds are considered precious partly because they're fairly rare: The planet's diamond content is about .001%. But on other planets in the universe, diamonds may be as common as ordinary ...

Not all planets have a home. For decades, astronomers and science fiction authors alike have speculated about orphaned orbs cast adrift from their home stars, endlessly wandering the boundless reaches ...

Astronomers have discovered a planetary system that formed nearly 13 billion years ago, suggesting the early universe harbored more planets than has been thought. The system consists of a star called ...