NASA second-guesses its decision to use SpaceX for ISS taxi

By Kendra R Chamberlain NASA has ordered a slate of taxi flights that’ll shuttle astronauts from US soil to the International Space Station (ISS) in the future. But SpaceX’s recent Falcon 9 loss has raised new concerns about using private enterprise rockets to shuttle humans to and from the ISS. Last week, NASA’s Aerospace Safety Advisory Panel (ASAP) voiced concern over using SpaceX for such missions in its annual report,