Photos: Spectacular sunset launch of asteroid mission

The 32-story-tall mobile service tower is retracted from the Delta 4 rocket at Vandenberg’s Space Launch Complex 6 pad for the NROL-45 flight that will place a surveillance satellite into orbit for the U.S. National Reconnaissance Office.

Spaceflight Now editor Stephen Clark spoke live to International Space Station astronauts Shane Kimbrough and Megan McArthur about their mission Friday.

SpaceX’s first Falcon Heavy rocket is expected to roll out to pad 39A at NASA’s Kennedy Space Center for the first time next month for a hold-down firing of its 27 Merlin main engines, but the mega-rocket’s inaugural test launch will slip into January, officials confirmed Tuesday.