The best available science, including a new paper by Guillermo Gonzalez, demonstrates that supporting life on a hypothetical exoplanet is much, much tougher than NASA suggests.
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The ethos of Palo Alto is understandable, as hundreds of millions in venture capital flow into start-ups, making millionaires of kids barely out of school.
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Some 150 members of the Discovery Society, including speakers and staff, are finding that there is more to the island expanses of Southeast Alaska than can be covered in a week.
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Why should anyone feel "existential dread" in the first place, if not for the fact that we long for something greater and beyond our mortal lives?
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