Try imagining a universe without color, or time. Unusual, but possible to visualize. Now try imagining a
universe without space. What does it look like? Without space, we seem not to be able to start. READ ONLINE

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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.