Therefore, if demons are cursed to wander upon the earth, they can not be the hyperdimensional beings purported to be behind UFOs and Aliens which seem to have a travel license in both the heavens and the earth.
The only Biblical explanation is that they are the Watchers (Daniel 4:13), the Heavenly Hosts (Genesis 2:1), and the "Wicked Hosts in High Places".
"For I am convinced that neither death nor life, neither angels or demons, neither the present nor the future, nor any powers, neither height nor depth, nor anything else in all creation will be able to separate us from the love of Yahweh that is in Messiah Jesus our Adonai." Romans 8:38.