The Heavens = space.
Yes aliens are real, truth is they are more human then we are,and have been for probably millions of years. Remember children, the earth is not flat, the universe does not revolve around us, and heaven is no more a "location" in space then space is THE location of heaven.
You are not the minds of a 2nd century barbarian, you can go deep underwater, cruise at super sonic speeds, and yes, even go out into space, the limit is you. And not another space faring race,we call aliens.
Rub two brain cells together please, the earth needs that right about now.
EDIT: Oh and when credible long term high commanding military officers come forth and say "they are real, and they are not ours" you had better freggin' listen. Head up eyes open, they're here.
Here's another one to throw at ya, more water on earth then land, multiple contacts with object's moving at stupid fast speed under water,being tracked for weeks, then lost. Who says these UFO's are not just another race that lives deep under the ocean? The movie abyss, yeah.