Ring-shaped UFO over Sydney, Australia

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• looks like a Mylar balloon

• Oh for F#*k. Sake Get a life!

• after 2 minutes and 41 seconds where i almost didn't want to watch because the intro is fancy and long, the first thing we see is a plane. when you zoom in we can all see that it's simply a plane. the second film is also a plane. are you a child new to the world? i mean really, is this a school project or something? the third object IS travelling horizontally, and looks like a mylar balloon. you can't know that you are looking at something cruising higher than a 747 jet. and you certainly wouldn't see it that closely.

• Cool, a mylar balloon and airplanes in morning/dusk.
  I want to believe, but not so much !

  • How do planes fly 100 metres above houses and without any shape or wings batman ?

• Obviously fishing for views with two airplanes and a balloon, LOL

• WTF!! UFO's dont have con-trails... This is just JACK-ASS reporting. I guess they've never seen a plane or balloon!!LMAO

• The comments that dismiss this video demonstrate the lack of knowledge of simple physics and propulsion this audience has. I wont bother explaining to a group of know nothing alls. Take a better look at that video and the opinion polls.

  • Oh please do. Go on, force yourself to speak to us plebes Know-nothings and tell us, oh know everything one, all about simple physics, so we will know as much as you.

• Gee, I guess all those things that fly over my place ( in a flight path) that leave water vapour trails- must be flying saucers! Here was silly me thinking they were 747s!

• A ring shaped Mylar Balloon that flies vertical against the wind, You wannabe
  aerospace engineers might want to try testing your explanations prior to proving your idiots.

• Oh, the music, the voices, the drama of it all!
  It could be a balloon or some weird contraption, but how do you know it's flying against the wind? And is there any need for rudeness?
  everyone has an opinion and is entitle to express it, politely.