Science

by NBC News

by Helen Regan

by Maya Rhodan

by Nolan Feeney

by Nolan Feeney

by Dan Hirschhorn

by Fortune / Benjamin Snyder and John Kell

by Jeffrey Kluger

by Justin Worland

by Jeffrey Kluger

by Denver Nicks

by TIME Photo

by Michael D. Lemonick

by Jeffrey Kluger

by Jeffrey Kluger