NASA’s stuck astronauts are heading home now that a replacement crew has arrived at the International Space Station. Butch Wilmore and Suni Williams launched last June as the first test pilots for Boeing’s new Starliner capsule and quickly encountered trouble. Nine months later, they’re flying back on SpaceX after Starliner’s empty return. Wilmore and Williams each had two spaceflights behind them including monthslong stints at the space station before signing up as Starliner’s first crew. They’re due back on Earth on Tuesday, weather permitting off the Florida coast. NASA’s stuck astronauts are heading home now that a replacement crew has arrived at the International Space Station. Butch Wilmore and Suni Williams launched last June as the first test pilots for Boeing’s new Starliner capsule and quickly encountered trouble. Nine months later, they’re flying back on SpaceX after Starliner’s empty return. Wilmore and Williams each had two spaceflights behind them including monthslong stints at the space station before signing up as Starliner’s first crew. They’re due back on Earth on Tuesday, weather permitting off the Florida coast. AP Technology and Science