Live coverage: Two satellites lift off aboard Ariane 5

A SpaceX Dragon cargo capsule concluded a 30-day stay at the International Space Station Tuesday with an automated departure from the orbiting research outpost at 5:05 a.m. EST (1005 GMT) Tuesday. The Dragon’s release from the robotic arm set the stage for a scorching re-entry and splashdown in the Pacific Ocean southwest of Los Angeles at around 10:41 a.m. EST (1541 GMT).

Officials from the Norwegian Space Center are looking for another launch opportunity for a microsatellite designed to track ship traffic and study space weather after engineers determined it could not safely be attached to a Soyuz rocket set for liftoff Friday.

China led the world with 34 orbital launch attempts in 2019 — including two failures — followed by 22 flights from Russian-operated launch pads and 21 satellite delivery missions originating from U.S. spaceports, all of which were successful.