A Soyuz rocket is sitting on a historic launch pad in Kazakhstan after a railroad journey at sunrise Wednesday positioned the crew ferry craft for liftoff Friday with a three-man crew destined for the International Space Station, including two spaceflight veterans who will spend nearly one year in orbit.

SpaceX trucked its Crew Dragon Endeavour spacecraft — refurbished with a new heat shield and structural enhancements — across the Cape Canaveral spaceport this week for attachment to a Falcon 9 rocket ahead of a planned liftoff next Thursday with four astronauts heading to the International Space Station.

NASA astronauts Bob Behnken and Doug Hurley may spend more time on the International Space Station than originally planned when they ride SpaceX’s new human-rated Dragon spacecraft into orbit on its first crewed test flight, a space agency official said Friday.