Science

by TIME Video

by Nolan Feeney

by TIME Staff

by Sabrina Toppa

by TIME Video

by Dan Kedmey

by Nolan Feeney

by Adam Glanzman

by Helen Regan

by Tessa Berenson Rogers

by Kevin McSpadden

by Rishi Iyengar

by TIME Photo

by Jeffrey Kluger and Michael Lester

by Andy Tully/Oilprice.com