NASA posted this back in 2013 — but a lot of people missed it. It’s an animation of the Moon’s full rotation, showing all sides of the Moon lighted by the Sun. Film images come from the Lunar Reconnaissance Orbiter (LRO).
Watching this video we can think of all sorts of oddities about the Moon that maybe we didn’t get answers to in our high school astronomy class, or Astronomy 101 at State U: Why do we see only one side of the Moon from Earth? Doesn’t that mean the Moon doesn’t rotate? And shouldn’t Pink Floyd have called the album, “Far Side of the Moon?”
When NASA ran the 24-second version of the video at the Astronomy Picture of the Day (APOD) site on September 16, 2013, NASA thoughtfully provided more information that you ever wanted:
Explanation: No one, presently, sees the Moon rotate like this. That’s because the Earth’s moon is tidally locked to the Earth, showing us only one side. Given modern digital technology, however, combined with many detailed images returned by the Lunar Reconnaissance Orbiter (LRO), a high resolution virtual Moon rotation movie has now been composed. The above time-lapse video starts with the standard Earth view of the Moon. Quickly, though, Mare Orientale, a large crater with a dark center that is difficult to see from the Earth, rotates into view just below the equator. From an entire lunar month condensed into 24 seconds, the video clearly shows that the Earth side of the Moon contains an abundance of dark lunar maria, while the lunar far side is dominated by bright lunar highlands. Two new missions are scheduled to begin exploring the Moon within the year, the first of which is NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE). LADEE, which launched just over a week ago, is scheduled to begin orbiting the Moon in October and will explore the thin and unusual atmosphere of the Moon. In a few months, the Chinese Chang’e 3 is scheduled to launch, a mission that includes a soft lander that will dispatch a robotic rover.
Tip of the old scrub brush to World and Science on Twitter (@WorldandScience).
A detailed still of the Moon, again from NASA:
Details of the Moon, from NASA’s fact sheet comparing the Moon and Earth.
Posted by Ed Darrell 
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