How the Universe Works: A Unique Beginning
Our moon was created accidentally when another planet collided with Earth.
Most Watched in The Solar System
Space School: Saturn
Saturn may be famous for its rings, but this gas giant also happens to possess the most powerful winds in our solar system. Learn more about Saturn in this segment from the Science Channel's "Space School."
Space School: Mercury
The closest planet to the sun, Mercury boasts both boiling hot and freezing cold temperatures. Learn more about this mercurial planet in the following clip from the Science Channel's "Space School."
Space School: Pluto
At 3.7 billion miles from the sun, the dark world of Pluto has remained a puzzle to scientists. Learn more about new findings on this distant former planet in the following clip from the Science Channel's "Space School."
Space School: The Sun
The sun has burned for almost 5 billion years, but this powerful star won't always be around. Find out what might be like once the sun is gone in this video from the Science Channel's "Space School."
Planet Storm: Solar Storm
On Discovery Channel's "Planet Storm," learn about solar storms and how they can effect the Earth and astronauts in space.
Space School: The Milky Way
Despite being one of billions of galaxies in the universe, the Milky Way is special. Find out why in this video from the Science Channel's "Space School."
Fireballs From Space: The Asteroid Belt
The asteroid belt is leftover matter from the beginning of the solar system. These asteroids and comets have the potential to collide with Earth. Learn more about the asteroid belt on Discovery Channel's "Fireballs From Space."
Recent Videos in The Solar System
Space: Hubble Captures Saturn's Aurorae
NASA and ESA astronomers released movies of Saturn's northern and southern lights, glimpsed edge-on for the first time by the Hubble Space Telescope. Jorge Ribas reports.