I was recently browsing photos of early Apollo missions and noticed that the plume of the Apollo 4 during launch is significantly bigger than that of Apollo 8. Wondering why is that?
Apollo 8 (left) vs. Apollo 4 (right) plumes.
I am not a hoaxer or something like that. I know for sure that people from the planet Earth walked on the Moon six times. The evidence to support that is overwhelming. Just really curious why such a difference. Does it depend on payload mass or different engine modes or something like that?