Live coverage: SpaceX supply ship returns to Earth

The launch of a commercial Bulgarian television broadcast satellite from NASA’s Kennedy Space Center in Florida is set for Monday after SpaceX ran through a mock countdown Thursday and test-fired a previously-flown Falcon 9 rocket’s Merlin main engines.

A Russian Soyuz rocket blasted off and shot into orbit Wednesday, carrying a Russian cosmonaut and two NASA astronauts, all veteran space fliers, on a two-day flight to the International Space Station.

Northrop Grumman engineers were able to create a new burn plan for the spacecraft after it missed two attempts to perform its “targeted altitude burn.” Capture using the robotic Canadarm2 happened at 3:11 a.m. EDT (0711 UTC) on Tuesday, Aug. 6.