Free Republic

Last week, the U.S. National Reconnaissance Office launched NROL-37, carrying its latest spy satellite into geosynchronous orbit via Delta IV-Heavy rocket. But it only took amateur space enthusiasts a few days to locate the mysterious new craft in the skies near Malaysia, over the Strait of Malacca. While the contents and capabilities of the NROL-37 mission's payload are classified (the satellite is innocuously labeled US-268), its need to hitch a ride on the world's biggest rocket strongly suggests it is the seventh member of the Mentor/Orion family, an extra-large class of signals intelligence (SIGINT) satellites which help provide eavesdropping capability...

Surveillance satellite launching Thursday atop Delta 4-Heavy rocket CAPE CANAVERAL — One of the largest satellites in the world will launch aboard America’s biggest operational booster Thursday, riding that power to a listening post 22,300 miles above the planet for its clandestine eavesdropping mission, all indications suggest. A United Launch Alliance Delta 4-Heavy rocket will fly from Cape Canaveral’s Complex 37 at 1:59 p.m. EDT (1759 GMT). Although the duration of the day’s usable launch window has not been revealed, officials previously said liftoff would occur by 6:30 p.m. EDT (2230 GMT). Weather forecasters say there is a risk of...

This mission was launched aboard a Delta IV Heavy configuration Evolved Expendable Launch Vehicle (EELV), which featured a center common booster core along with two strap-on common booster cores. The ULA Delta IV Heavy is currently the world's largest rocket, providing the nation with reliable and proven heavy lift capability. Each common booster core was powered by an RS-68A liquid hydrogen/liquid oxygen engine producing 702,000 pounds of thrust. A single RL10 liquid hydrogen/liquid oxygen engine powered the second stage. The booster and upper stage engines are both built by Aerojet Rocketdyne. ULA constructed the Delta IV Heavy launch vehicle in...