Mond No. 42-42599204
by NASA GSFC/Arizona State Universi - © Corbis. All Rights Reserved. - © NASA GSFC/Arizona State Universi/Kinetikon Pictures/Corbis
Mare Orientale on the Moon
Named Mare Orientale in Latin, the Eastern Sea is believed to be one of the youngest such impact basins on the Moon. With its concentric bull's-eye rings, this 560-mile-wide feature is likely the result of a colossal impact by an asteroid-size object more than three billion years ago. Orthographic projection. Lunar Reconnaissance Orbiter, 2009-2012 --- Image by © NASA GSFC/Arizona State Universi/Kinetikon Pictures/Corbis