Two people stand near a model of the James Webb Space Telescope (JWST) at NASA Goddard Space Flight Center in Greenbelt, Maryland on April 2, 2015. AFP PHOTO/ JIM WATSON (Photo credit should read JIM WATSON/AFP via Getty Images)
Two people stand near a model of the James Webb Space Telescope (JWST) at NASA Goddard Space Flight Center in Greenbelt, Maryland on April 2, 2015. AFP PHOTO/ JIM WATSON (Photo credit should read JIM WATSON/AFP via Getty Images)