Coinspeaker Sorry Musk, SpaceX and NASA Postpone Historic Astronaut Launch Due to Bad WeatherOn Saturday at 3:22 p.m., there will be another attempt to launch astronauts. However, as NASA and SpaceX have warned, there is only a 50% chance the astronaut launch will actually occur, therefore, another postpone is possible. Sorry Musk, SpaceX and NASA Postpone Historic Astronaut Launch Due to Bad Weather