Rebecca Richards-Kortum is a "genius grant" winner with a very busy schedule. The engineering professor, who encourages students to come up with medical devices that will be valuable in the developing world, is the mother of six and a marathon runner.
John D. and Catherine T. MacArthur Foundation
Haitians protest in front of a U.N. office on Oct. 15, 2015, demanding reparations for families of people who suffered or died from cholera. The outbreak started in 2010, claiming some 9,000 lives.
Hector Retamal/AFP/Getty Images
This is what's called a "specimen lot" — a large mason jar holding smaller vials of parasitic worms gathered by a researcher in 1927. The Smithsonian collection has more than 120,000 specimen lots.