Science

by Jeffrey Kluger

by Samantha Grossman

by Bryan Walsh

by Bryan Walsh

by Jeffrey Kluger

by Ben Cosgrove

by Michael D. Lemonick

by Doug Aamoth

by Dan Kedmey

by Dan Kedmey

by Maya Rhodan

by Bryan Walsh

by Veronique Greenwood

by Eliana Dockterman

by TIME Staff