Science

by Michael D. Lemonick

by Alexandra Sifferlin

by TIME Staff

by TIME Video

by Maya Rhodan

by Nolan Feeney

by Jeffrey Kluger

by TIME Video

by Jeffrey Kluger

by Jeffrey Kluger

by Jeffrey Kluger

by Denver Nicks

by Giri Nathan

by Michael D. Lemonick

by Jeffrey Kluger