
The National Reconnaissance Office's (NRO) NROL-91 mission lofted into orbit aboard a United Launch Alliance (ULA) Delta IV Heacy rocket on Sept. 24--the fifth and final Delta IV Heavy launch from Vandenberg Space Force Base, Calif., since 2011. ULA is a partnership between Lockheed Martin [LMT] and Boeing [BA]. Two ULA Delta IV Heavy launches of NRO payloads from Cape Canaveral Space Force Station, Fla., remain next year and in 2024, the NRO said. NRO Director Chris Scolese praised the…