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What should you do if you meet an alien? Neil deGrasse Tyson in 'Take Me To Your Leader' (interview)

In a world easily startled by sensationalism, Tyson offers a cool, gentle voice of reason amid the unchecked fascination with ...
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Scientists propose new way to find aliens — and we may already have a spacecraft that can help

Scientists say amino acids produced by life are distributed differently and more diversely than amino acids produced by ...