Aging
may be the only universal process. Everything does it: living things, rocks,
maybe even protons (we’re not sure yet). Despite that—or because of it—we
humans have long dreamed of conquering it.

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Space Colonization and the Meaning of Life
Colonizing the galaxy is the highest good humanity could achieve.
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The Surprising Importance of Stratospheric Life
The science of bacteria in the atmosphere is getting its moment in the sun.