Nature is “the phenomena of the physical world collectively … as opposed to humans or human creations,” according to the Oxford English Dictionary. There’s us, and there’s our environment. Where the definition separates us from nature, the word itself reminds us how linked we are. Nature emerges not just as a backdrop, but as a character on stage with us, and one who can be remarkably human.

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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.