Live coverage: China launches three-man crew to Tiangong space station

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.

This is the launch timeline to be followed by the Atlas 5 rocket’s ascent into orbit from Cape Canaveral with the SBIRS GEO Flight 4 satellite for U.S. military infrared reconnaissance.

The latest prototype of SpaceX’s  Starship launch vehicle — Starship SN10 — took off from the company’s South Texas test site and flew to an altitude of more than 30,000 feet Wednesday, then descended to a controlled vertical landing after two previous test vehicles crashed at touchdown. Minutes later, the 16-story test rocket exploded in a fireball, but the test flight appeared to be a major step forward in the early stages of the Starship program.