Why the Socorro UFO could NOT be an ET craft
The red symbol that Lonnie Zamora saw on the egg-shaped craft was (it seems) to be a painted symbol.
Impacts of these particles cause erosive damage, similar to sandblasting (Wikipedia)
Particles impact paint and cause small craters in walls and windows.
Elon Musk’s Space X is coping with how to maintain business or corporate logos on reusable space vehicles, affected by the deleterious affects of space travel.
And the First Star Trek movie addressed the matter when it coped with a rampaging entity – V’ger – which was the “Voyager” spacecraft, the name on the craft having been altered by its travels in space.
If Lonnie Zamora’s UFO had traveled from space regions to Earth, it seems that the (painted) insignia would have been altered by that travel: loss of part of the symbol and/or discoloring by the vicissitudes of space travel.