Video: Change of command aboard International Space Station

Mission managers Tuesday granted approval to proceed with Wednesday’s rollout of the Atlas 5 rocket and Thursday’s launch to deliver the commercial Cygnus cargo ship into orbit to resupply the International Space Station.

NASA has announced a one-day delay in SpaceX’s next cargo launch until Wednesday to allow time for ground teams to replace moldy food bars meant for 40 mice heading for the International Space Station as part of a biological research experiment, denying the launch company a chance at two Falcon 9 missions on back-to-back days.

Astronaut Scott Kelly and cosmonaut Mikhail Kornienko ended a record-setting 340-day stay in orbit with a fiery plunge to Earth Tuesday, settling to a jarring rocket-assisted touchdown in Kazakhstan to close out a medical research voyage that may help pave the way for flights to Mars.