The United States' largest rocket launched a spy satellite on a hush-hush mission Wednesday (Aug. 28).
An unmanned Delta 4-Heavy rocket lifted off the pad at California's Vandenberg Air Force Base at 2:03 p.m. EDT (1803 GMT) Wednesday, carrying a classified payload to a polar orbit for the U.S. National Reconnaissance Office (NRO).
"Today's launch is dedicated to the men and women who serve for our nation's freedom," a commentator said a few minutes into the liftoff. [See more photos of today's spy satellite launch]
It's unclear what intelligence the spacecraft, which is known as NROL-65, will collect as it zips around our planet. Because of the clandestine nature of the mission, it entered a planned media blackout about seven minutes after liftoff.