Each bottle of Champagne contains around 50 million bubbles. But will any of them accelerate the inebriation process? Victor Bezrukov/Flickr.com hide caption

itoggle caption Victor Bezrukov/Flickr.com

People drew maps of body locations where they feel basic emotions (top row) and more complex ones (bottom row). Hot colors show regions that people say are stimulated during the emotion. Cool colors indicate deactivated areas. Image courtesy of Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen. hide caption

itoggle caption Image courtesy of Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen.

Pallbearers carry the flag-draped coffin of Francois Jacob, Nobel Prize-winner and World War II veteran, in Paris on April 24. Reuters/Landov hide caption

itoggle caption Reuters/Landov

In Jiaonan county, the Qi wall incorporates outcrops of bedrock. Linda Nicholas/The Field Museum hide caption

itoggle caption Linda Nicholas/The Field Museum

The most abundant meteorites found in Antarctica are called chondrites. They are some of the oldest objects known in the solar system. Katherine Joy/Antarctic Search for Meteorites Program / Case Western Reserve University hide caption

itoggle caption Katherine Joy/Antarctic Search for Meteorites Program / Case Western Reserve University

Ripening fruit in a grove in Plant City, Fla., this month. Florida citrus growers are worried about citrus greening, which causes bacteria to grow on the leaf and fruit, eventually killing the tree. Chris O'Meara/AP hide caption

itoggle caption Chris O'Meara/AP