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Uploaded on Feb 24, 2012
Dimitar Sasselov, CfA In 1543 Copernicus showed that our planet isn't the center of the universe. Centuries later, we know that just as Earth is not the center of things, the life on it is probably not unique either. Or is it? Tonight, learn how the search for "super-Earths" - rocky planets larger than our own that orbit other stars - may provide the key to answering essential questions about the origins of life here and elsewhere. You'll also hear how we face a moment of unprecedented potential - a convergence of pioneering efforts in astronomy and biology to peer into the unknown and determine how unique Earth life truly is.