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Are People Actually Aliens?

August 18, 2011 16:46 by Brandon

DNA, according to Merriam-Webster's online dictionary, is "a self-replicating material present in nearly all living organisms."  Therefore, DNA is necessary for life here on Earth.  But where did the materials needed to make early forms of life come from?

A recent Washington Post article asserts that these building blocks came from space.  As reported by the Washington Post, a new report featured in the Proceedings of the National Academy of Science "bolsters the notion that heavy meteorite bombardment of the early Earth may have seeded the planet with the stuff of life."  These meteorites, according to the article, may have provided our planet with the necessary ingredients to form the original forms of life on Earth. 

According to the Washington Post, evidence of life outside of Earth has not yet been found, but all life on Earth needs DNA to store genetic information.  A ring that's at the center of DNA, called nucleobases, was found in 11 out of the 12 meteorites that were looked at. 

Max Bernstein, a scientist for NASA, had this to say to the Washington Post:  "These molecules are at the core of [life's] blueprints.  It's possible that the presence of these molecules in meteorites made us what we are today."  The findings beg the question:  Are human beings actually aliens?