NASA's New Horizons mission will be the first ever to visit Pluto and its moons. This artist's conception shows the probe as it passes the dwarf planet. JHUAPL/SwRI hide caption

itoggle caption JHUAPL/SwRI

This photo from Discovery Channel shows a great hammerhead, one of the largest sharks in the world, during an episode of Shark Week. Discovery Channel/ AP hide caption

itoggle caption Discovery Channel/ AP

The Soyuz-U space launch vehicle rocket carrying the Russian cargo ship Progress M-28M launched from the Baikonur Cosmodrome on Friday. The Progress resupply capsule successfully docked with the International Space Station on Sunday. Sergai Savostyanov/ITAR-TASS/Landov hide caption

itoggle caption Sergai Savostyanov/ITAR-TASS/Landov

The recent spate of attacks — seven since June in North Carolina alone — has little to do with the shark population off American coastlines. Shark attack, George Burgess says, "is driven by the number of humans in the water more than the number of sharks." Carol Buchanan/iStockphoto hide caption

itoggle caption Carol Buchanan/iStockphoto

Researchers discovered ancient animal mummies piled up in heaps inside a catacomb. Many of the mummies were in poor condition. Courtesy of Paul Nicholson hide caption

itoggle caption Courtesy of Paul Nicholson

The Birth of Venus, by Sandro Botticelli, depicts the goddess of love floating on a giant scallop shell. The word aphrodisiac derives from her Greek name, Aphrodite. Sandro Botticelli/Wikimedia hide caption

itoggle caption Sandro Botticelli/Wikimedia