Tim Folger
Writer & Editor, Discover, On Earth

Tim Folger is a science and nature writer, and a contributing editor at Discover and On Earth magazines. He is also the series editor of Best American Science and Nature Writing. His writing has appeared in National Geographic, and Smithsonian, among others. He lives in northern New Mexico.

Written by Tim Folger

Europa as photographed by the Galileo spacecraft. Photo courtesy NASA/JPL-Caltech/SETI Institute

Our aquatic universe

We know that the Universe is awash with watery moons and planets. How can we pinpoint which of them could support life?

Tim Folger