I have a question regarding worldbuilding and haven't found a question like this yet, so I created an account and hope that someone can answer it :D
As a starting point, imagine our real-life Sun, Earth, and Moon.
Is it possible for the Moon to always be in Earth's shadow, to basically create a permanent Lunar eclipse?
Which Values (for example Earth-Moon-Distance, Moon's speed around the Earth, Moon's Mass, etc. (sorry for the non-scientific words, I'm not good at astronomy and physics)) would have to change for it to be possible?
If it is not possible for the actual Moon (or a Moon with different Values) to always be in Earth's shadow, would it be possible to have another Moon-like or Planet-like object that orbits the Sun to always be in Earth's shadow?
How big, small, dense, close earth could that other object be to be stable in Earth's shadow?
EDIT: As I understand the answers so far, basically my idea would not be possible in the real world. I know this forum is not really for discussions, but I had another idea: What about, instead of a circular Moon orbit with Earth at the center, an oval-ish Moon orbit that has its center somewhere in Earth's shadow.... something like: (SUN)--------(Moon)-(Earth)-----(Moon) Oh dear, I hope you can understand what I mean, it's not to scale of course. My new question is basically, would a Moon orbit be possible where the moon is like more than 90% (maybe even like 99%) of the time "behind" the Earth? I guess there would be a lot of implications, tides come to my mind and I am sure you smarter people can think of a lot more implications... but the basic question stands if it would be at all possible.
If that is not possible as well, then I guess I will have to give the Moon some kind of thrust, that seems to be the only way to give it a stable "orbit" in Earth's shadow, if I understand the answers correctly.