Learn more about eclipses, both solar and lunar, from the eclipse Web site maintained by NASA's Goddard Space Flight Center.
The Conceptual Image Lab at NASA's Goddard Space Flight Center has several downloadable videos on eclipses.
09.06.12 - Twice a year, for three weeks near the equinox, SDO moves into its eclipse season -- a time when Earth blocks its view of the sun for a period of time each day
12.09.11 - LRO will get a moon-based perspective on the final lunar eclipse of 2011, which occurs on December 10.
06.08.11 - In anticipation of the upcoming lunar eclipse later this month, NASA has released a new video that shows how lunar eclipses work.
12.17.10 - With frigid temperatures already blanketing much of the United States, the arrival of the winter solstice on December 21 may not be an occasion many people feel like celebrating. But a dazzling total lunar eclipse to start the day might just raise a few chilled spirits.