Highly detailed sonar systems aboard the research vessel Pritchard gave researchers a clear view of the sediment on the seafloor off Long Island. Courtesy of John Goff/University Of Texas hide caption

itoggle caption Courtesy of John Goff/University Of Texas

The eye of Hurricane Earl in the Atlantic Ocean, seen from a NASA research aircraft on Aug. 30, 2010. This flight through the eyewall caught Earl just as it was intensifying from a Category 2 to a Category 4 hurricane. Researchers collected air samples on this flight from about 30,000 feet over both land and sea and close to 100 different species of bacteria. Jane Peterson/NASA hide caption

itoggle caption Jane Peterson/NASA

Women smoke in New York City's Times Square. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

William Shakespeare, depicted in this 17th century painting, penned his sonnets on parchment. Now his words have found a new home ... in twisting strands of DNA. Attributed to John Taylor/National Portrait Gallery hide caption

itoggle caption Attributed to John Taylor/National Portrait Gallery

Health workers in Nepal culled chickens and destroyed eggs following an outbreak of bird flu in Kathmandu in October 2012. Prakash Mathema/AFP/Getty Images hide caption

itoggle caption Prakash Mathema/AFP/Getty Images

Two chimps groom each other at the Save the Chimps facility in Florida. The National Institutes of Health owns about 360 chimpanzees that aren't yet retired and that are living at research facilities; new guidelines say most of its chimps should be retired. Save the Chimps hide caption

itoggle caption Save the Chimps