NASA Astronauts Respond After Elon Musk Calls Former Commander Of ISS A Slur "Hey @ElonMusk, when you finally get the nerve to climb into a rocket ship, come talk to the three of us," Captain Mark Kelly added.

Disgraceful.

See my comments at the site. / #musk #mogensen #MarkKelly #ScottKelly #AspergersDisorder #arrogance #insulting #astronauts #childishbehavior