Planet # 42-42599220
by NASA/JPL-Caltech/Michael Benson - © Corbis. All Rights Reserved. - © NASA/JPL-Caltech/Michael Benson/Kinetikon Pictures/Corbis
Transit of Io
Transit of volcanic moon Io across Jupiter. South is up in this view. Mosaic composite photograph. Cassini, January 1, 2001 --- Image by © NASA/JPL-Caltech/Michael Benson/Kinetikon Pictures/Corbis