Video: Change of command aboard International Space Station

Russia’s next Progress cargo freighter rolled out to its launch pad in Kazakhstan on Tuesday in a final move before blasting off Thursday at the tip of a Soyuz rocket to resupply and refuel the International Space Station.

A Russian Soyuz spacecraft originally slated to bring home two Russian cosmonauts and a NASA astronaut parachuted to a landing in Kazakhstan Tuesday, returning to Earth without a crew due to concerns about overheating following a coolant leak while docked at the International Space Station last year.

Astronaut Scott Kelly, in good spirits and looking surprisingly fit after a record 340 days in space, said Wednesday he could have stayed up longer if necessary, giving him confidence future astronauts will be up to the challenge of even longer flights to Mars and beyond.