Falcon 9

Live coverage: SpaceX Falcon 9 rocket lifts off on first SDA mission

SpaceX launched a Falcon 9 rocket at 7:29 a.m. PDT (10:29 a.m. EDT; 1429 UTC) Sunday from Vandenberg Space Force Base, California with 10 missile tracking and data relay satellites for the U.S. military’s Space Development Agency. The launch occurred three days after SpaceX aborted the first launch attempt at T-minus 3 seconds to examine data from one of the Falcon 9’s main engines.

Atlas 5

Live coverage: Atlas 5 launches with missile warning satellite for U.S. military

United Launch Alliance launched the U.S. military’s SBIRS GEO 5 early warning satellite into orbit aboard an Atlas 5 rocket from Cape Canaveral Space Force Station. A launch attempt Monday was scrubbed during fueling preps due to a faulty temperature sensor. Liftoff of ULA’s workhorse rocket, fitted with two strap-on solid-fueled boosters, occurred at 1:37 p.m. EDT (1737 GMT).