Added on Sep 16, 2011

Length: 04:23 | Comments: 0

A dramatic collision of two moons may explain why our Moon is very much two-sided. Professor Mike Merrifield briefly discusses a recent paper in Nature. Check it out at http://www.nature.com/nature/journal/v476/n7358/full/nature10289.html Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos

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Tags: moon  two  moons  far  side  dark  earth