I used to believe outer space scenery, with black background and shining stars is because there is "night" in space, and there's always "night" in space just because it lasts way more time that night on Earth, and after few hundred years then comes a "space day", when planets hover among clouds with blue sky in background. I also believed every planet hover incredibly high over "space ground" which exists in the bottom of universe and stretches into infinity in every direction, and if you fell off the spaceship, you would be falling down until you'd hit the bottom, which looks like giant desert.
A childhood belief about outer space

others believed things like this
- As a child I used think if I jumped too high on a trampoline I'd be sucked up into outer space.— Jenn
- i used to think that vacuum cleaners had little piece of space inside them because space is a vacuumAnon
- When I was really little I used to belief that fireworks dropped out of the sky from outer space.— davesgrl2001
- I used to think that up in outer space the sun was a gigantic baby that never grew up like in Teletubbies.— WeirdButProud
- I thought the airport was a place that you get chopped into pieces in order to go to outer space! lol!!!— I don't know why you get chopped...
- when i was was little i thought that pop stars were stars in space would pop— roman honytoast