Live coverage: Soyuz crew capsule departs station, lands in Kazakhstan

The twin 177-foot-tall solid-fueled boosters for the first flight of NASA’s Space Launch System have been stacked inside the Vehicle Assembly Building at the Kennedy Space Center to await arrival of the rocket’s cryogenic core stage, which is set for a second engine test on a firing stand in Mississippi later this month.

Two veteran spacemen embarking on a marathon yearlong mission in orbit must first sprint through a busy workday Friday — suiting up for liftoff, climbing into their Soyuz spaceship, then flying to the International Space Station.

SpaceX’s Falcon 9 rocket will go from Cape Canaveral to low Earth orbit in 10 minutes Friday with a Dragon capsule heading for the International Space Station carrying nearly 7,000 pounds of supplies and experiments.