A good first step for young people looking to change the world, says Chelsea Clinton, is to consider, “What makes you most angry? What pisses you off?”
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Pitch Black: Cosmic Clumps Cast the Darkest Shadows
Astronomers have found cosmic clumps so dark, dense and dusty that they throw the deepest shadows ever recorded. Image credit: NASA/JPL-Caltech/University of Zurich › Full image and...
