Eric Christian, center, IBEX deputy mission scientist, NASA's Goddard Space Flight Center in Greenbelt, Md., discusses findings made by NASA's Interstellar Boundary Explorer, IBEX, at NASA Headquarters in Washington, Thursday, Oct. 10, 2009. Photo Credit: (NASA/Carla Cioffi)
Photographer NASA/Carla Cioffi
Date October 15, 2009