Video replay: Parker Solar Probe launches atop Delta 4-Heavy

A secret Chinese military payload, believed to be a surveillance satellite, successfully flew into space Sunday aboard a Long March 4C rocket on China’s 39th and final scheduled orbital launch attempt of the year.

A United Launch Alliance Delta 4-Heavy rocket blasted off from Cape Canaveral at 1:51 p.m. EDT (1751 GMT) today to haul a classified satellite into space for the U.S. National Reconnaissance Office. Follow the mission in our live journal.

An hour after OSIRIS-REx separated from the United Launch Alliance Atlas 5 rocket on its trajectory to Asteroid Bennu, officials from NASA, the University of Arizona, ULA and Lockheed Martin held the post-launch news conference from Kennedy Space Center.