Snapshots from Atlas 5 launch

This video replay shows the liftoff of SpaceX’s Falcon Heavy rocket from the Kennedy Space Center in Florida with 5.1 million pounds of thrust, followed by the nearby landing of the launcher’s twin side boosters nine minutes later. The rocket’s center core missed a landing attempt on SpaceX’s offshore drone ship.

One week after a Russian Soyuz spacecraft departed the International Space Station and brought three crew members back to Earth, another Soyuz carrying a veteran cosmonaut and a first-time NASA flight engineer is ready for launch Thursday on a quick four-orbit flight to the orbiting lab complex.

NASA and SpaceX officials briefed the media Wednesday on the planned launch of a Falcon 9 rocket and Dragon cargo capsule on a resupply flight to the International Space Station.