Report Unusual traffic in Canadian skies? in Airline Aviation Forum Posted 13 hours ago 24 minutes ago, daniel.o said: Thanks for the link, Seeker. I'm looking at it now! Any thoughts on this case? https://toronto.citynews.ca/2016/11/23/object-caused-near-collision-porter-plane-not-drone/ And here are more details from the TSB: "C-GLQL, a de Havilland DHC-8-402 aircraft operated by Porter Airlines, was conducting flight POE204 from Ottawa/MacDonald-Cartier Intl, ON (CYOW) to Toronto/Billy Bishop Toronto City, ON (CYTZ). While passing through 8300 feet approximately 29 nautical miles East on the initial approach to CYTZ, the flight crew noticed an object directly ahead on their flight path. The object appeared to be solid, approximately 5 to 8 feet in diameter and shaped like an upright doughnut or inner tube. There appeared to be no relative movement and the object was rapidly getting closer to the aircraft. The captain overrode the autopilot in order to quickly descend the aircraft under the object. The object passed slightly to the right and above the aircraft. There was no impact. Both cabin crew members were in the process of securing the cabin for arrival and were not seated. They received minor injuries when they were thrown into the cabin structure. The aircraft subsequently landed at CYTZ without further incident." I believe that 99.99% of so-called "UFO" sightings have conventional explanations, and I recognize that trained observers like veteran pilots are WAY better equipped than me to analyze such cases. Story 1.) When I was a kid (a looong time ago) I heard about a prank that some guys had done - they took dry cleaning bags and made a small balsa wood frame, a sort of "X" in the opening of the bag with a candle. Apparently the heat from the candle would produce enough lift the float the whole thing and the light from the flame would cause an eerie glow. I tried unsuccessfully (as a 12 year old kid) to duplicate this but was unable to do so. And, BTW, I am fully aware that sending lit candles, plastic bags and balsa wood into the skies is ill-advised. Story 2.) Father and son send iPhone into space There's way more "stuff" flying around than we realize.