By Andrew Paul
By Mack DeGeurin
By Laura Baisas
By Lauren Leffer
By Paul Hockenos / Hakai Magazine
By Brandt Ranj
By David Nield
By Michael E. Fossum / The Conversation
By Popular Science Team
By Natasha Uzcátegui-Liggett / The Markup
By Debbie Wolfe
By Alisha McDarris
By Daniela Hirschfeld / Knowable Magazine
Get Popular Science’s biggest stories delivered to your inbox.