Was the Solar System Designed with a Protective Shell? From Apollo Images to the Heliopause

On July 20, 1969, Apollo 11 landed on the Moon. The photographs from the flight show blindingly bright ground, white suits, and a black sky without a single star. The mission report records Hasselblad cameras running around 1/60 to 1/125 of a second for sunlit scenes. At those settings, starlight is far too faint to register next to lunar ground and suits reflecting direct sun.

The shutter-speed explanation settles the photograph. It does not settle the question that has walked alongside the Apollo photographs for more than half a century: why does the sky above another world appear as a backdrop with every light switched off? The shell story begins right there. It says that people are shown only the light a system permits, while the background behind it stays hidden behind an artificial environment or behind a limit our instruments were never allowed to measure.