Astronomy Biology 

Comet Carries Building Blocks of Life

Many of us learned in school that comets were lifeless balls of frozen gas and dust hurtling through space. In recent years, however, we have changed the way we think about comets, which are now thought to be the couriers that delivered life to a young Earth. Boosting the courier theory, the European Space Agency’s comet-chaser craft named Rosetta has found complex organic molecules, the building blocks of life, on a comet. These are the exciting initial results of the data analysis using the information returned by Rosetta’s lander, Philae,…

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