Kate Haynes (left) and Samantha Jensen watch the stock tickers and debate what to select for their investments while participating in Junior Achievement's Finance Park program in Fairfax County, Va.
Protesters ride their bikes and hold flags reading "Nuclear power? No thanks" during a demonstration at the nuclear power plant of Biblis in Germany on April 25. Germany canceled plans to build new plants in the aftermath of the nuclear disaster in Japan.
Janet Ohlsen, pictured here in 2009 after completing a triathalon, has battled depression, anxiety and bipolar disorder. After a long search for mental health care, Ohlsen found a psychotherapist with whom she clicked.
Courtesy of Janet Ohlsen
Mahmoud Jibril of the Libyan Transitional National Council talks with reporters after meeting with members of the Senate Foreign Relations Committee at the U.S. Capitol on Thursday.
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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.
Iranian President Mahmoud Ahmadinejad addresses tens of thousands of Iranians gathered in Azadi (Freedom) Square in Tehran to mark the 31st anniversary of the Islamic Revolution on Feb. 11, 2010. Ahmadinejad said Iran had produced a "first stock" of 20 percent enriched uranium for its nuclear program.
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