My Little Pony: Friendship is Magic - Image #834,114

The Horsehead Nebula IRL is about 15 million Light-years away from our Earth, give or take a few million.

By the time we pinpoint where their world is, prepare transport, and actually arrive on their planet, it'll be EQG meets Star Wars.

Actually in season 1 episode 4, Applebuck season, Twilight says "What on Earth", instead of Equestria, creating the theory that they may be on earth hidden away.