The Kuiper belt is beyond, far beyond the orbit of Pluto, no manned mission could ever reach it. There is an explanation for the flag fluttering, i cant recall what it was.

As for the Lancaster, it was hit by a beam, kidnapped, by aliens and brought into space. They thought the oxygen equipment would keep the crew alive. They couldnt control the plane, it skewed around, eventually crashing on the moon.

It is in a gully, it cannot be seen from space unless you look carefully. It is there, with a camp fire beside it. A crew member survived long enough to make some tea.

Your very name 6eq, is the log number of a transmission from an alien race intercepted in space.

How ironic.