Live coverage: Atlas 5 rocket lifts off from Cape Canaveral

Poor weather in the offshore recovery zone east of Florida forced SpaceX and NASA to delay the departure of an upgraded Cargo Dragon spaceship from International Space Station Monday. The capsule is bringing home several tons of research equipment, specimens, and other equipment.

SpaceX launched a Falcon 9 rocket Sunday from Cape Canaveral with 143 small satellites, a record number of spacecraft on a single mission, giving a boost to startup space companies and stressing the U.S. military’s tracking network charged with sorting out the locations of all objects in orbit.

A week after a test-firing of SpaceX’s new crew capsule went awry, SpaceX successfully completed a hold-down firing of its next Falcon 9 launcher Saturday morning at Cape Canaveral in preparation for a predawn liftoff Wednesday carrying several tons of food, supplies and experiments to the International Space Station.