Tonight there will be a total lunar eclipse, which NASA predicts
will give the moon a "vivid red or orange color." The event can
only occur when there is a full moon and when part of the Earth's
shadow hits it, and there won't be another one until 2010, so it's
probably worth checking out. Also, unlike a solar eclipse, it's
perfectly safe for viewing
This NASA website has a helpful diagram, and a
chart with all of the relevant times. For those on the east coast,
the partial eclipse begins at 8:43 pm, the total eclipse lasts
from 10:01-10:51, and the show is over at 12:09 am.