Video: Orion flight highlights

United Launch Alliance said Thursday it is targeting Sept. 26 for the next attempt to send a classified U.S. government spy satellite into orbit aboard a Delta 4-Heavy rocket, following an abort Aug. 29 just three seconds before liftoff from Cape Canaveral.

As a United Launch Alliance Delta 4-Heavy rocket prepares to carry NASA’s Orion spaceship on its first orbital flight test, we look back at the seven previous Heavy launches.

Engineers at NASA’s Kennedy Space Center tasked with overseeing launches of scientific satellites and interplanetary probes will be responsible later this year for ensuring six major missions safely get into space over a span of a little more than six months, beginning with the launch of NOAA’s new GOES-S weather observatory on an Atlas 5 rocket March 1.