A lunar eclipse happens when the moon passes behind the earth so that the earth blocks the sun's rays from directly hitting the moon.
On July 15, 2011, the world witnessed a very rare lunar eclipse. A comparable one won't be witnessed in anyone's lifetime.
The lunar eclipse lasted 100 minutes. During the eclipse, the moon changed from its normal white color to brilliant shades of orange.
The next lunar eclipse which is as long as this one will happen in 2141, or 130 years from now.
The last lunar eclipse closer to the center of Earth's shadow was on July 16, 2000, which lasted 107 minutes.
The next total lunar eclipse will occur on Dec. 10, 2011, which will be visible from all of Asia and Australia and parts of the U.S.