NASA has carved out more time to talk through problems with its attempt to send up astronauts on Boeing’s CST-100 Starliner, which is now targeting June 1 if mission managers give the go for launch. NASA has carved out more time to talk through problems with its attempt to send up astronauts on Boeing’s CST-100 Starliner, which is now targeting June 1 if mission managers give the go for launch. Space Exploration Phys.org – latest science and technology news stories