Artwork: ULA Vulcan rocket revealed

The U.S. Air Force on Friday made its first public confirmation that the X-37B unmanned space shuttle will be launched next month on the fourth flight of an Orbital Test Vehicle.

Boeing’s Starliner spacecraft parachuted to an airbag-cushioned landing in New Mexico on Dec. 22 to conclude an abbreviated two-day test orbital test flight that accomplished many objectives, but missed a planned rendezvous and docking with the International Space Station.

Rocket Lab’s commercial Electron booster fired into orbit from New Zealand on Sunday, carrying a flock of 13 CubeSats on the company’s first mission chartered by NASA, and closing out a landmark year for the new smallsat launch provider as Rocket Lab aims to grow its flight rate to at least one per month in 2019.