Live coverage: Atlas 5 countdown and launch journal

A Dragon supply ship owned and operated by SpaceX departed the International Space Station early Monday and returned to Earth for a predawn splashdown in the Pacific Ocean southwest of Los Angeles with scientific specimens and other equipment. Astronaut Jack Fischer released the Dragon cargo capsule from the station’s robotic arm at 2:41 a.m. EDT (0641 GMT), and splashdown occurred around 8:12 a.m. EDT (1212 GMT).

Giving every opportunity for the storm clouds to blow clear after a four-hour hold, the United Launch Alliance Delta 4-Heavy rocket counts down Thursday afternoon at Cape Canaveral until the clocks had to be halted for the day.

After launching Nov. 23 and arriving in lunar orbit over the weekend, China’s Chang’e 5 sample return mission landed on the moon Tuesday, targeting a volcanic region in the Oceanus Procellarum region. On Thursday, the craft’s ascender vehicle took off to begin the trip back to Earth, followed by a successful docking with the mission’s return vehicle in lunar orbit Saturday.