Who Owns the Sky?

"For most of history, people never actually visited the sky, but the common law nonetheless had an answer: “cujus est solum ejus est usque ad coelum”—he who owns the soil owns up to the sky. This rule worked well enough for centuries because it only came up when, say, someone built a structure or owned a tree that overhung someone else’s land, or when someone provocatively held his arm over his neighbor’s fence."