A new view of the moon's formation
College Park, MD (SPX) Apr 12, 2015 - Within the first 150 million years after our solar system formed, a giant body roughly the size of Mars struck and merged with Earth, blasting a huge cloud of rock and debris into space. This cloud would eventually coalesce and form the moon. For almost 30 years, planetary scientists have been quite happy with this explanation--with one major exception. Although this scenario makes sense w ... more

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