Debra Fischer, a professor of Astronomy at San Francisco State University, right, makes a comment, as Jim Fanson, William Borucki and Jon Morse, fourth from right, look on during a media briefing on the Kepler mission, Thursday, Feb. 19, 2008, at NASA Headquarters in Washington. Kepler, the first mission with the ability to find planets like earth, is scheduled to launch on March 5, 2009 from Cape Canaveral Air Force Station, Fla. aboard a Delta II rocket. At far left is J.D. Harrington. Photo Credit: (NASA/Paul. E. Alers)