Science

by Rishi Iyengar

by Sarah Begley

by Justin Worland

by Helen Regan

by Jeffrey Kluger

by Alexandra Sifferlin

by TIME Staff

by Jeffrey Kluger

by Eric Renner Brown / Entertainment Weekly

by David Stout

by Sabrina Toppa

by Laura Stampler

by Helen Regan

by Julia Lull

by Dan Kedmey and Jonathan D. Woods