Many unusual things can be observed in the sky.  Some are angels, and some are fallen angels.  Some objects are from the kingdom of God, and some are imitations of such things.  Some are man-made for civilian purposes, while others are made for the military.  Some man-made objects are well known to humanity, while some have yet to be revealed.  Some objects are in the sky fulfilling their utilitarian function and purpose, while others are for humor and mischief, and still others are to distract and deceive.  An object may be seen alone, and others may be seen together.  Some objects may even be perceived differently depending on the region or era.  Regardless of what’s in the air, it’s important that they don’t become grains of sand in one’s eyes and heart.  God is the Creator, and He is above all these things.  He knows what they all are, and in time some will be revealed while others will be exposed.