Issue 38 of the Nautilus print edition combines some of the best content from our issues on Outsiders and Hidden Truths. It includes contributions from science writer Corey S. Powell, astrophysicist Caleb Scharf, history professor Erika Lorraine Milam, and more. This issue also features a new illustration by Sam Chivers.

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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.