Earth's moon wandered off axis billions of years ago
Wednesday, March 23, 2016 - 15:00
in Astronomy & Space
A new study reports Earth's moon wandered off its original axis roughly 3 billion years ago. Ancient lunar ice indicates the moon's axis slowly shifted by 125 miles, or 6 degrees, over 1 billion years. Earth's moon now a member of solar system's exclusive 'true polar wander' club, which includes just a handful of other planetary bodies.