Live coverage: Proton blasts off on return-to-flight mission

A day after a timing error caused it to enter the wrong orbit and miss its objective of meeting up with the International Space Station, Boeing’s unpiloted Starliner crew capsule prepared for its next major test Sunday, when it will plunge back into the atmosphere and target a predawn landing at White Sands Space Harbor in New Mexico.

After replacing a faulty inertial measurement system blamed for a scrubbed launch attempt Sunday, a Soyuz rocket headed to space from French Guiana today with five satellites, including the next spacecraft for Europe’s multibillion-dollar Earth observing network and a French experiment to probe the validity of Einstein’s theory of general relativity.

SpaceX officials have postponed the launch of a Spanish-owned telecommunications satellite from Cape Canaveral planned for this weekend to conduct additional testing on the Falcon 9’s payload fairing pressurization system, the company announced Saturday.