CAPE CANAVERAL, Fla.—For the first time, NASA is putting its trust in a recycled SpaceX rocket and capsule for a crew. Astronaut Megan McArthur takes special pleasure in the reused spacecraft set to soar Thursday morning. In “a fun twist,” she’ll sit in the same seat in the same capsule as her husband, Bob Behnken, did last spring for a test flight to the International Space Station. “It’s kind of a fun thing that we can share. I can see him and say, ‘Hey, can you hand over the keys. I’m ready now to go,’” she said in a recent interview with The Associated Press. While their 7-year-old son, Theo, is becoming a pro at parent launches, McArthur said “he’s not super excited” about her being gone for six months. That’s how long she and her three crewmates will spend at the space station. This will be SpaceX’s third crew flight …