Hubble telescope’s bigger, more powerful successor to soar

  • In this Sept. 29, 2014 photo made available by NASA, James Webb Space Telescope Optical Engineer Larkin Carey examines two test mirror segments on a prototype at the Goddard Space Flight Center’s giant clean room in Greenbelt, Md. Webb will attempt to look back in time 13.7 billion years, a mere 100 million years after the universe-forming Big Bang as the original stars were forming. (Chris Gunn/NASA via AP)

CAPE CANAVERAL, Fla. — The Hubble Space Telescope’s successor is a time-traveling wonder capable of peering back to within a hair’s breadth of the dawn of the universe. And it’s finally on the brink of flight.