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Photo Credit: Nerissa Escanlar

Caleb Scharf

About the Author

Caleb Scharf received the 2022 Carl Sagan Medal while director of astrobiology at Columbia University and is currently the senior scientist for astrobiology at NASA’s Ames Research Center. He has written several previous trade books and is a frequent contributor to Scientific American and Nautilus magazine. He divides his time between Silicon Valley and New York City.  

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By the Author

The Giant Leap
The Giant Leap

The Giant Leap

by Caleb Scharf

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