Live coverage: SpaceX launches another batch of Starlink satellites

Citing medical reasons, Russia’s space agency announced Wednesday that it is replacing two cosmonauts who were scheduled to fly on the next Soyuz mission to the International Space Station in April with backup crew members.

SpaceX’s Dragon spaceship, carrying more than 4,100 pounds of cargo and research specimens, descended to a predawn splashdown Monday in the Pacific Ocean southwest of Los Angeles, completing the first re-flight of one of SpaceX’s unpiloted supply ships to the International Space Station.

A Russian Soyuz rocket lifted off Friday from French Guiana with four broadband satellites for the O3b network, which provides high-speed connectivity to developing countries, ships and other customers who lack a reliable Internet link.