UFO passing behind incoming plane at Lisbon Airport, Portugal

Many experts are concerned about Unidentified Flying Objects flying very near passenger planes and pose a danger to aviation.

There are many incidents reported that airplanes nearly or even collided with these unknown objects, like an airplane that nearly collided with a UFO in Australia, a UFO that collided with a Chinese Passenger plane at 26,000 Ft. or the close encounter with a UFO near Heathrow when a pilot saw that it headed towards him and was going to crash into the plane on which he ducked to avoid a collision.

The latest incident has been reported by an airline spotter who took images of an incoming passenger plane at Lisbon Airport, Portugal when he discovered a UFO behind the aircraft on July 30, 2017 depicted in one of the images.

The spotter states: I was (as an airline spotter) taking some photos of an unusual visit of a Lufthansa A340 at Lisbon airport from the balcony of my house.

I took several snapshots of the incoming plane doing is final approach when trough the visor of the camera spotted a very fast object passing behind the aircraft.

Assuming a bird was ruining my photo, didn’t care more about it. When downloading the images to the computer I spotted a dark spot in one of the images. Then a recall the assumed bird and zoom it.

That's when I found that it was not a bird at all. Also it appears not to be a drone, because of shape and size but specially because I used hi speed shutter 1/2000 and no propeller is visible, not even blurred.

The object’s motion was very fast and passed behind the airplane in a fraction in straight line from East to West, over southern sky.

I’m reporting this to the Mutual UFO Network (Mufon case file) because I don’t know what it is and hope to get some kind of clue or answer about this incident.


  1. blurry photo's drive me nuts.
    We are past that age of limited technology.
    It could be a half deflated balloon or shopping bag for all we know.


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