Live coverage: SpaceX launches Falcon Heavy rocket from Kennedy Space Center

Several NASA astronauts, plus Boeing test pilot Chris Ferguson, recently participated in a training session at Cape Canaveral, practicing how they would evacuate from the Atlas 5 rocket’s launch pad in the event of a countdown emergency.

A Soyuz rocket arrived at a launch pad Tuesday in Kazakhstan for liftoff later this week with a satellite to monitor natural disasters and track forest fires from orbit and 72 secondary payloads from Russia, the United States, Germany, Norway and Japan.

The four-member crew will now fly onboard Dragon Endurance instead of SpaceX’s fifth Crew Dragon spacecraft as originally intended. Launch has moved up to Wednesday, March 12, “pending mission readiness and completion of the agency’s certification of flight readiness process.”