This 4K visualization shows the Moon's phase and libration at
hourly intervals throughout 2018, as viewed from the Northern Hemisphere. Each
frame represents one hour. In addition, this visualization shows the moon's
orbit position, sub-Earth and subsolar points, distance from the Earth at true
scale, and labels of craters near the terminator. Credit: NASA’s Goddard Space
Flight Center/David Ladd (USRA) Ernie Wright (USRA): Lead Visualizer John
Keller (NASA/GSFC): Scientist Noah Petro (NASA/GSFC)
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