Two objects chase brighter object until it dimmed out, quickly, after changing course upon being chased. Low earth orbit?Clear night, many stars visible, moon was close and bright but only 90 percent full. What I thought was a bright and low satellite (bright solid white light, no blinking) was traveling (to the west of my position) steadily from the north, southeast bound. I observed it for about 3 seconds (it covered 10 horizontal degrees in that time) when a much dimmer (further away looking and blue tint) object came from approximately 5-7 lateral degrees above the bright object (or above and to the west of it, from my vantage point) and changed course, following the bright objects path. The lesser object stayed about 15-20 horizontal degrees behind the bright object when the lesser object CLEARLY changed course to follow, but the bright object gained another 10 degrees between the two (either the bright object sped up or the lesser object slowed but it seemed like the former). They traveled another 20 lateral degrees south, towards the moon (just a reference point), an! d I noticed a third object (looking exactly like the lesser object) dropped down from approximately 10 lateral degrees above the bright object (which then began to travel more southeast than south) and it CLEARLY changed course to follow the bright object. The two lesser objects were close together at this point (2-5 lateral degrees between the two), obviously chasing the bright object, and all three covered about 10-15 lateral degrees before the bright object just faded out (like a fast dimming off) and the two lesser objects separated about 5 lateral degrees and, together, turned more east but still heading south until they got too far for me to see. All three objects covered 5-10 horizontal degrees at a given time. NO blinking lights at any point from any of these objects. I believe this was low earth orbit, not in the atmosphere. At about 22:50, the same night (sept. 4), .25 miles west of SR-17, on Merion Rd., I was looking at Ursa Major when another object that looked like the lesser objects from earlier, dropped down 10-15 degrees in about 3-5 seconds, steadily, and slowly stopped and began to blink a red light. It dropped from the furthest (from the handle) east most, top star of the “pot”, but barely on the inside of it, below the lowest and furthest star in the “pot”, stopped, began blinking the red light, lightly, and just behaved like a plane at this point, heading west slowly. It took about 20 seconds for it to travel west, below ursa major, and then appeared to stay in that vicinity. I left after about 5 minutes of keeping an eye on it but it got dimmer and dimmer so it may have been getting further from me. I was facing northwest of my position on Merion Rd. There are always military craft out in that area, day and night, and I have come to the conclusion that the only options, of what these were, are either military and extra terrestrial, or just extraterrestrial. Unless, of course, there are private industry high altitude to space fights and chases going on. Very strange and active night. I have NEVER had such solid clarification of objects I see in the sky (that aren’t regular aircraft) being under immediate intelligent control. Now I know what it feels like to have actually seen something surreal in the sky.