Scientists Pin Down Moon’s Age, Possibly Solving Long-Running Lunar Mystery

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Scientists have pinned down the birth date of the moon to within 100 million years of the birth of the solar system — the best timeline yet for the evolution of our planet’s natural satellite.

This new discovery about the origin of the moon may help solve a mystery about why the moon and the Earth appear virtually identical in makeup, investigators added.

Scientists have suggested the moon was formed 4.5 billion years ago by a gigantic collision between a Mars-size object named Theia and Earth, a crash that would have largely melted the Earth. This model suggested that more than 40 percent of the moon was made up of debris from this impacting body. (Current theory suggests that Earth experienced several giant impacts during its formation, with the moon-forming impact being the last.)

Learn more here http://www.huffingtonpost.com/2014/04/03/moons-age-lunar-mystery_n_5079380.html

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“Scientists Pin Down Moon’s Age, Possibly Solving Long-Running Lunar Mystery”