Science

by Helen Regan

by Michael D. Lemonick

by Jeffrey Kluger

by Michael D. Lemonick

by Mehera Bonner

by Naina Bajekal

by Maya Rhodan

by TIME Photo Department

by NBC News

by TIME Staff

by Michael D. Lemonick

by Dan Kedmey

by Justin Worland

by Jack Linshi

by Justin Worland