SpaceX will launch the mammoth Starship on Sunday in a launch window that opens at 5 AM PST (7 AM local time) from the company’s Starbase site in southeast Texas. This flight, which will be the fifth in the Starship development program, is coming a little sooner than expected: the Federal Aviation Administration had previously said that it did not anticipate issuing a modified launch license for this test before late November.
NASA has a ton of internal bureaucracy, hell they have an article on it.
https://www.nasa.gov/missions/artemis/nasa-vision-sparked-commercial-space-revolution-on-space-coast/