View Full Version : Second Moon May Have Orbited Earth Billions of Years Ago

2011-Aug-04, 12:00 AM
Itís a view science fiction fans could only hope for: twin moons in the night sky above Earth. But it might have been reality about 4 billion years ago. A new model suggests the lunar farside highlands could have been created from a collision with a smaller companion moon in what scientists from the University [...]

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