Pathologist Thomas Harvey took dozens of photos of Einstein's brain. This one shows that Einstein's prefrontal cortex (associated with higher cognition and memory) is unusually convoluted. On the right side of the brain there are four large ridges, where most people have only three.
Brain(2012)/National Museum of Health and Medicine
The relationship between science and the government shifted dramatically in the wake of World War II, when the fruits of basic research resulted in an applied technology that changed the course of the war and world forever. Above, a nuclear explosion at the Trinity Site on July 16, 1945.
Los Alamos National Laboratory
Urushiol, the chemical in poison ivy, is also harvested from the Japanese lacquer tree to coat lacquerware. Here, a rash caused by lacquerware that likely was not properly cured.
Each of these mouse pups was born from an egg scientists created using embryonic stem cells. It's possible the technology could change future treatment for human infertility.
Stefano Amabili walks under the sun in Miami Beach, Florida, in May. The Center for Disease Control and Prevention has found that more people are using sunscreen and protecting themselves from the sun's rays.
Joe Raedle/Getty Images