A patient participates in a brain-computer interface study. By placing an array of sensors directly on the brain and connecting them to a computer, researchers are able to decode brain signals into meaningful information, including some words.
American Museum of Natural History Science Bulletins
Two cells — one marked mostly in green, the other in blue — of a newly discovered organism found in water samples collected from the University of Exeter pond. Scientists think these "cryptomycota" use their tails to propel themselves while searching for food.
Workers assemble Volkswagen Golf 6 cars at the Volkswagen factory in Wolfsburg, Germany. Volkswagen and other German automakers are among those driving Germany's economic boom.
Sean Gallup/Getty Images
In this photo provided by ISAF Regional Command (South), members of Provincial Reconstruction Team Zabul and 1st Stryker Brigade Combat Team, 25th Infantry Division, make their way to the Zabul Juvenile Detention Facility on Wednesday in Qalat, Afghanistan. The effect of al-Qaida leader Osama bin Laden's death on the Afghan insurgency is yet to be seen.
Brian Ferguson/U.S. Air Force/AP