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Tanner F, USA, Friend of Aeon

Aeon is a registered charity committed to the spread of knowledge and a cosmopolitan worldview.
But we can’t do it without you.

Support Aeon

Aeon is a registered charity committed to the spread of knowledge and a cosmopolitan worldview. Our mission is to create a sanctuary online for serious thinking.

No ads, no paywall, no clickbait – just thought-provoking ideas from the world’s leading thinkers, free to all. But we can’t do it without you.

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David Grinspoon
Astrobiologist, Planetary Science Institute, University of Colorado

David Grinspoon is an astrobiologist, award-winning science communicator, and prize-winning author. He is a senior scientist at the Planetary Science Institute and an adjunct professor of astrophysical and planetary science at the University of Colorado. His technical papers have been published in Science and Nature and his popular writing has been featured in The New York TimesSlate, Scientific American, The Boston Globe, The Los Angeles Times, and many more. His latest book is Earth in Human Hands: Shaping Our Planet’s Future (2016).

Written by David Grinspoon

Essay/
Deep Time
Welcome to Terra Sapiens

Humans have been altering Earth for millennia, but only now are we wise to what we’re doing. How will we use that wisdom?

David Grinspoon