What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white ...

Full Video- http://www.youtube.com/watch?v=WHNO079G1i8 Pluto, Eris, and the Dwarf Planets of the Outer Solar System Exploring Space Lecture webcast live on Tuesday ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Astronomers have been ...

By combining the power of ground-based and space-based telescopes, astronomers have discovered a new brown dwarf—a type of ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...

For all the talk about life across the cosmos, Earth remains the only confirmed example. That single data point makes your place in the universe feel both ordinary and strange.

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

The newly discovered world is called GJ 251c and it is a super-Earth orbiting a red dwarf star less than 20 light-years away.

Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect ...