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There are plenty of contrails today, January 17, 2018, in the satellite images of the Australian states Victoria and Tasmania, including a contrail cross over the latter in the Aqua and Suomi images taken at about the same time (04:35 - 04:45 UTC): https://go.nasa.gov/2FL0QdY The most likely...

Earlier this week, on Monday, January 2, 2016, I took this short video of a private jet and its contrail: Source: https://youtu.be/I0kCYGinf-4 The aircraft details were not available on FR24: The callsign and a distinct livery helped me to identify it as Dassault Falcon 900LX LX-LXL: by Andy...

I saw a flying object yesterday November 25, 2016 that I could not identify, hence the thread's title. No, I do not think it was an alien craft, it certainly was something of earthly origin: an aircraft, or a drone, equipped with navigation lights. These were the only things that I could see and...

While paying a visit to the place of my childhood in Russia ten days ago (September 15, 2016), I spotted this very unusual contrail: A local Aero Club regularly hires a Mi-8 (Mi-17) "Hip" helicopter for skydiving and related activities. It takes the jumpers to the altitudes of 2500 metres...

A recent video posted on youtube on April 26, 2016 shows a two-engine jet leaving a single trail from the starboard engine that stopped eventually. In the very beginning, there are also remnants of the port engine's trail that stopped earlier. The video was taken in Thuringia in the middle of...

A week ago, on January 9, 2016, a vast contrail grid was formed over the Southeastern Australia. Its images were captured by all three satellites in the NASA Worldview: Terra, Aqua and Suomi NPP. The Terra image below is a composite of two swaths, the right one was taken at 23:55 (8-Jan-2016)...

A scientific paper of the above title published yesterday in PNAS Early Edition may be of interest to Metabunk members: http://www.pnas.org/content/early/2016/01/02/1517441113.full.pdf Significance The wide availability of user-provided content in online social media facilitates the...

Better late than never. I've just stumble upon an eight month old airliners.net thread describing the most unusual contrail: oly720man From United Kingdom Posted Wed May 13 2015 22:49:12 BST While waiting for the bus home tonight BA269, an A380, flew over the centre of Manchester. As it...

A video posted on Facebook on December 26, 2015 at 08:46 UTC shows a plane circling in the sky near Genoa and leaving a racetrack contrail https://www.facebook.com/idromarco/posts/1230480320302678 Also, there is a photograph of the same or similar contrail taken at approximately the same...

While watching the BBC live broadcast of the first UK astronaut heading for the International Space Station this morning (11 AM GMT), I noted a contrail that started forming behind the Soyuz rocket at about one minute after the lift-off and stopped about ten second later: This suggests...

I've spotted this unusual cloud this morning (August 29, 2015) from the car on the trip to the Norfolk Broads and observed it for about twenty minutes from 11:15 to 11:35 BST (10:15 - 10:35 UTC) until it was obscured by lower clouds. The cloud comprised regularly spaced transverse stripes...

This ordered cloud pattern was formed yesterday, July 26 over the tropical waters of Atlantic and can be seen on the NASA Worldview. The clouds in average are about 100 miles in diameter and their centres are about 150 miles apart, in a quasi-regular lattice. The pattern was captured by both...

This thread is for the collections of images of clouds, contrails, etc., which are taken synchronously by both satellite and ground-based cameras. For example, the following images of skies to the East of Cornwall are from June 25, 2015 at 14:20 BST (13:20 UTC): In the upper left corner is the...

While browsing recent Earth images on NASA EOSDIS Worldview, I spotted a blue spiral in the Gulf of Oman. The image above was taken by the Terra satellite on May 4, 2015, but the spiral can be seen on the images taken by both Terra and Aqua satellites between April 23 and May 8. Here is an...

I was checking the satellite images of England on NASA Worldview for yesterday, May 16, 2015 and noticed a rather unusual feature - a diagonal band devoid of clouds. It is particularly striking in the Aqua image at about 12:30 UTC: but it was also present in the Terra image at 10:45 UTC, nearly...

These flickr photos of an unusually shaped contrail were taken on 14-May-2015 in Hamilton, Ontario: and University of Toronto: The time of the latter, 13:23, is probably EDT (17:23 UTC), whereas the time of the former, 12:56 is probably EST (17:56 UTC). A partial contrail loop is also seen...

Split from the OP in https://www.metabunk.org/threads/contrails-from-turboprop-planes-at-lower-than-typical-altitudes.6082/. I hope that the discussion will assist the identification of this sepatate interesting trail. Murphy's Law in Action. I usually have my camera with me when I cycle to...

While following the evolution of an usually shaped trail (the bottom one, just above the roof), I have taken a picture of an ordinary linear contrail (the top one), which appear to be truly remarkable - it has been formed at 23,000 feet. It was left by this plane: Here is an FR24 screenshot...

While looking for examples of contrails on NASA Worldview, I encountered an unusual cloud pattern above Indian Ocean near the Australian coast in the EOSDIS satellite images taken on August 27, 2014: The approximate coordinates of the pattern's centre point are 25° S, 107° E. The Terra image on...

An interesting article has been published in the scientific magazine Nature today: Long considered to be the stuff of legend, dragons cross cultures and continents. Until recently, however, scant attention had been paid to the fact that the commonality in cultural representations of such...