NASA Discusses Research Seeking Habitable Worlds Among The Stars

WASHINGTON, DC - JULY 14: John Mather, senior project scientist for the Webb telescope at NASA's Goddard Space Flight Center, speaks at a press conference discussing "the scientific and technological roadmap that will lead to the discovery of potentially habitable worlds among the stars" July 14, 2014 in Washington, DC. Most prominent among the methods NASA will search the universe for habitable exoplanets will be the deployment of the James Webb Space Telescope, with a mirror of 21 feet, scheduled to be launched in 2018. (Photo by Win McNamee/Getty Images)