Welcome to the Universe

Discover the universe: Learn about the history of the cosmos, what it's made of, and so much more.


Worlds beyond our solar system.

Giant balls of hot gas that burn for millions to billions of years. 

Concentrations of matter with gravity so powerful not even light can escape.

Looking like a pinwheel, this face-on spiral galaxy holds a bright-white core at image center. Arms curve outward from the core. They hold dark dust lanes and bright star-forming regions. All on a black background dotted with stars.

Collections of stars, planets, and vast clouds of gas and dust bound together by gravity.

Earth is the only planet we know of with life on it ... so far

Learn about he history of the universe according to cosmology’ current theories

Mysterious substances that affect and shape the cosmos.