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by Einstein on March 13th, 2009
Mercury formed around the same time as Earth formed so that would be in the range of 4.6BILLION YEARS!this is determined by comparing the age of rocks from Mars & from Earth.
by Bobgardenman on March 13th, 2009
Mercury was heavily bombarded by comets and asteroids during and shortly following its formation 4.6 billion years ago. Cheers
by Tallyman on March 13th, 2009
A 1979 Ford Mercury is 30 years old.
The planet is about 6000 years old:
http://www.answersingenesis.org/get-answers/topic/astrophysics
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