DNA From The Cosmos

An interesting article from astronomy.com discusses an experiment in which scientists exposed ice mixtures to ultraviolet radiation to simulate the effects interstellar space may have on the compounds found in asteroids and comets. Amazingly enough, they found the experiments resulted in 2-deoxyribose, (the component that makes up the “D” in DNA)

We are stardust, we are golden.
We are caught in the devils bargain.
And we got to get ourselves back to the garden.

Crosby, Stills, Nash & Young – Woodstock

So in truth, this doesn’t prove or disprove that DNA, basic scaffolding of life, can just spontaneously appear from space dust, but it’s certainly one letter closer than it was last year. It’s an amazing set of results from a truly worthwhile experiment.

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