Lunar Axis Relocated (VIDEO)

Southern Methodist University

Caption

Discovery of lunar polar wander gains the moon entry into an extremely exclusive club. The only other planetary bodies theorized to have permanently shifted location of their axis are Earth, Mars, Saturn's moon Enceladus and Jupiter's moon Europa.

What sets the moon apart is its polar ice, which appears to effectively "paint out" the path along which its poles moved.

Credit

(James Keane, U of Arizona)

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