Live coverage: SpaceX cargo capsule returns to Earth

Two minutes after launch aboard a Russian Soyuz rocket last week, NASA astronaut Nick Hague knew something had gone badly wrong.

Two NASA astronauts and an Italian flight engineer took shelter in the space station’s Russian segment Wednesday as mission control analyzed a possible leak of toxic ammonia coolant aboard the complex. Initial data indicated it was likely a false alarm.

Rocket Lab’s second mission of 2021 lifted off at 6:30 p.m. EDT (2230 GMT) Monday from New Zealand carrying six small satellites for customers in Australia and the United States, along with a test platform for a NASA small satellite mission to the moon launching later this year.