Stars begin as clouds of cold gas that transform into blazing hot fireballs. Here's what scientists know about the process - and what they're missing.

Now that you've read how stars form, check out what's going on inside them.

By analyzing the Sun's light, astronomers are learning about not only our star's makeup, but also the early solar system.

Now that you've read about our star's composition, watch its roiling surface in action from the comfort of your own computer.

In December 1993, astronauts aboard the space shuttle Endeavour successfully repaired the Hubble Space Telescope, turning the observatory into the science machine it remains today.

The stars next door are fun to hunt, easy to spot, and can teach you about astrophysics.

Here's the complete list for your observing pleasure.