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Seth Reinfelder
I dont know but my dad and I saw this same exact cloud tonight it was near Venus. We had no idea what it was.
JLDAUVERGNE
A rocket lauch of course but witch one ? May be an Atlas ?
TWAN
The mystery is solved! As several answers noted the above phenomena is a rocket fuel dump. On June 15th, sky watchers in the Middle East witnessed this cloud. On that day an Atlas V rocket launched from Cape Canaveral in Florida. Its payload was a pair of ocean surveillance satellites. Due to the rocket failure the satellites were deployed into a wrong orbit. When the rocket's Centaur upper stage vented excess fuel, the cloud shaped above the atmosphere and by reflecting sunlight it was visible in the early evening sky of the Middle East. The dumping of excess fuel is standard practice for Centaur-boosted launches. See here for more details: http://www.spaceweather.com/archive.php?view=1&day=17&month=06&year=2007
Philippe Ailleris
Reminds me of 1979 Canary Islands pictures (http://www.anomalia.org/g006.htm#) of ballistic missiles launched from US Navy submarines, under the North Atlantic waters. Observed by thousands astonished witnesses, the luminous phenomena were also investigated by the Spanish Air Force. It is only 20 years later, through declassified records of the US Navy about intercontinental ballistic missile launchings,that the mystery was solved...I'm afraid not a "true UFO"...
Frank Howie
Could this be a 'stray', perhaps damaged, meteorological balloon changing shape as it climbs to differing altitudes? I hope (?) however that it is proves to be something 'intriguing'!
Raoul Lannoy
Outgassing from a satellite or a last stage rocket?
Julio Vannini
That's the released waste from a space shuttle or the ISS expanding due the lack of atmospheric pressure. It also might be caused by a fuel dump from a rocket stage. Clear skies!
Mohsen Fouji
I have seen it before. This had been published in Iranian websites.
It is the fuel leak of atlas 5 rocket.
Aleza
The 'Bright Cloud' is not a cloud, it is reflection of light on a window.
Jerry Lodriguss
It's a rocket fuel dump.
I've seen this before.
Tavi Greiner
A rocket fuel dump
Mohammad Ashrafy
As you should now it was the remenant fuel (or fuel and vaporized water) an of the rocket sattelite.And I can remember when we came to observe the new moon Crescent in Iran .We Saw it. Some one told us that 's the final step of placing sattelite and it was Done beacause they wanted to Completely seperate the rocket and the Sattelite.
Kiarash Mashoufi
this is Atlas 5 that I think explode in the sky . I can remember this shot that published in almost every astronomical persian websites.
John Needham
zodiacle light
Abdolhossein Hashemizadeh
It's not a UFO or even a mystery cloud,this is just the excess fuels which released from Atlas 5(at stage 2 which called Centaur). It caused over Iran at June 15th 2006.this is a usual phenomena but often it happens over oceans or or at day.I was the first person who report it and a few hours latter the photos was published.
David Malin
STS-117 was a Space Shuttle mission flown by Space Shuttle Atlantis and was in orbit for much of June 2007, returning to Earth on June 22. Before returning (or maybe earlier) it would have dumped waste water or fuel which would have made a visible plume. If your photograph was taken mid to late June but before the 22nd, that's probably what it was.
Since Venus was in the sky, and was close to the star cluster M44 (visible in the picture) the photograph was made within and hour or two of sunset, so the vapour would have caught the sunlight and would have been moving across the sky at the same velocity as Atlantis. If you play with the levels in your original image file you may see the trail of Atlantis there.
rex vector
space junk reentry thru upper atmosphere where it was made visible and and the ionized particles or ice caught in a fast high altitude jet stream that moved it along
pegah shandiz
It can be a reflection from satellite
Mohammad Saber Ali Aghaei
That is fuel leak of stage2 of Atlas 5 rocket, {Friday, June 15 2007}
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