On June 2nd, according to Reuters, on June 1st local time, Boeing's first manned test flight of its interstellar aircraft was postponed again a few minutes before launch.
NASA subsequently stated that it was due to a ground system malfunction, and the current possible launch window is on June 5th or June 6th.
It is reported that the original plan of the "interstellar plane" was to send two astronauts to the space station and stay for a week before returning to Earth on it. However, due to system malfunctions and other issues, the launch plan has been delayed multiple times.