Vandenberg rocket: largest American rocket blasted off today on West Coast

The unmanned Delta 4-Heavy rocket lifted off from Vandenberg Air Force Base at 1:10 p.m. PST (4:10 p.m. EST) carrying a secret satellite for the US National Reconnaissance Office. Making the Vandenberg rocket the largest rocket launch ever from the country's West Coast. The largest American rocket currently in use blasted off from the California coast today (Jan. 20) carrying a new U.S. spy satellite on a classified mission, making it the biggest rocket launch ever from the country's West Coast. More

(Source: Christian Science Monitor - Jan 21)