Live coverage: Kennedy Space Center to reopen Friday

Legendary astronaut John Young, who twice ventured into space in pioneering two-man Gemini capsules, orbited the moon and then walked on its cratered surface before commanding two space shuttle missions, including the program’s maiden flight, has passed away, ending one of the most storied careers in space history.

SpaceX is expected to transfer its next Falcon 9 rocket to launch pad 39A at NASA’s Kennedy Space Center in Florida on Monday with a direct-to-home television broadcast satellite on-board, setting up for a two-and-a-half hour predawn launch window Tuesday.

A United Launch Alliance Atlas 5 rocket with a new type of solid rocket booster emerged from its hangar Tuesday evening for the 1,800-foot rollout to pad 41 at Cape Canaveral, moving into position for liftoff Wednesday with a classified National Reconnaissance Office payload.