The US agency boss said there is no doubt that the schedule will change despite SpaceX insisting Crew Dragon could launch a pilot flight by the end of the year. A senior NASA manager said SpaceX is hoping to take corrective action to launch two astronauts to the ISS. But Mr Bridenstine's comments hit Mr Musk's goal for this year.
Mr Bridenstine said: "There is no doubt that the schedule will change
" It will not be what was originally planned. he has stopped short of offering a clear flight timeline for his multi-billion-dollar Commercial Crew Program, and said he would not prejudge the results of an investigation into the incident
A source in SpaceX is confident the company may rebound from the explosion.
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For years, the United States has had to rely on Russia for rides to the space station and the Commercial Crew Program's
NASA has been hired by NASA to develop a separate rocket and capsule system to fly astronauts to space, has also delayed its own flights for months. is considering paying for two
Originally, SpaceX's astronaut flight was scheduled for July following a successful six-day round-trip unpiloted mission in March
The April Coca-Cola's Air Force Station (CCA) was released on Wednesday, with SpaceX on its way to testing the eight emergency thrusters designed to propel the capsule, dubbed Crew Dragon, to safety from the racket in the event of a launch failure.
NASA has awarded $ 6.8billion (£ 5.4billion) to SpaceX and Boeing to develop their separate capsule systems
Mr Bridenstine also pledged better communication and transparency after the agency and SpaceX were criticized over reluctance to describe in plain terms what happened to the capsule for days after the incident
SpaceX has yet to comment on his latest judgment