In this photo from March 2009, an Israeli Air Force F-15I fighter jet lands at the Hazerim Air Force Base in the southern Israeli Negev desert during a media event. The Israeli aerial arsenal includes the F-16I, which military officials said was capable of reaching Iranian airspace without refueling.
Jack Guez/AFP/Getty Images
Sen. Edward Kennedy announced his proposal for a national health care plan at the Capitol on May 15, 1979. Behind him, large charts illustrate rising health costs in the U.S.
Charles W. Harrity/AP
These healthy newborn monkeys, Mito and Tracker, developed from embryos containing transplanted DNA. They are named after the dye "mitotracker" used for imaging mitochondria in cells.
Oregon National Primate Research Center at OHSU