Engineer Larkin Carey examines two test mirror segments on a prototype at the Goddard Space Flight Center’s giant clean room in Greenbelt, Md., in 2014. Webb will attempt to look back in time 13.7 billion years, a mere 100 million years after original stars from the Big Bang were forming. CHRIS GUNN/NASA/AP FILE
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…
