NASA explains tonight's super moon
<p>In this Thursday, May 3, 2012, photo, the moon peaks through the clouds in the night sky in Huntsville, Ala. On Saturday, May 5, 2012, the moon will be a "supermoon" or perigee moon as the moon will be at it's closest approach to the earth. It will appear 14 percent larger and 30 percent brighter than normal. (AP Photo/The Huntsville Times, Bob Gathany)</p>
Tonight's full moon will be what experts call a 'perigee moon,' and it could be 14 percent larger and 30 percent brighter than this year's other full moons.
NASA experts explain the lunar event on the agency's web page NASA Science News and in the video on this page.