MILAN — NASA is rethinking its desire for a “continuous human presence” in low Earth orbit during the transition from the International Space Station to commercial platforms to include options where, at least temporarily, the agency may not always have astronauts in orbit. In a talk at the International Astronautical Congress here Oct. 16 on NASA’s development of a low Earth orbit microgravity strategy, Deputy Administrator Pam Melroy mentioned what she called the “elephant in the room” of a desired continuous human presence in LEO. NASA has had astronauts in…
