We have launched the new Spitzer website! Send feedback to outreach@ipac.caltech.edu. Find the old website at http://legacy.spitzer.caltech.edu.

"Why does the moon look like it changes?" (Ask an Astron.)

Ask an Astronomer Video • October 14th, 2005 • ask2002-003

Phases of the Moon are clearly explained in this 'Ask an Astronomer' episode.