Arnold AFB TN (AFNS) (SPX) Dec 10, 2012 -Looking skyward, scientists worldwide now know the universe’s size, composition, approximate age and rate of expansion, thanks in part to “essential” data derived from a time-sensitive test conducted at the Arnold Engineering Development Complex’s (AEDC) Mark 1 Aerospace Space Chamber. On June 30, 2001, a Delta II launch vehicle carried NASA’s Wilkinson Microwave Anisotropy Probe (WMAP) on … more