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Astronomy Picture of the Day -- Noctilucent Clouds over Moscow
| June 27, 2013
| (see photo credit)
Posted on 06/27/2013 4:17:54 AM PDT by SunkenCiv
Explanation: This panoramic night scene from June 8 looks out across a Moscow skyline from atop the main building of Lomonosov Moscow State University. Shining in the darkened sky above are widespread noctilucent clouds. From the edge of space, about 80 kilometers above Earth's surface, the icy clouds can still reflect sunlight even though the Sun itself is below the horizon as seen from the ground. Usually spotted at high latitudes in summer months the diaphanous apparitions, also known as polar mesospheric clouds, have come early this season. The seasonal clouds are understood to form as water vapor driven into the cold upper atmosphere condenses on the fine dust particles supplied by meteor smoke (debris left by disintegrating meteors) or volcanic ash. Their early start this year may be connected to changing global circulation patterns in the lower atmosphere. During this northern summer, NASA's AIM mission provides daily projections of the noctilucent clouds as seen from space.
(Excerpt) Read more at 22.214.171.124 ...
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science
[Credit & Copyright: Sergey Lisakov]
posted on 06/27/2013 4:17:54 AM PDT
To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
posted on 06/27/2013 4:18:38 AM PDT
(McCain or Romney would have been worse, if you're a dumb ass.)
Never seen them myself. Guess I’m just too far south.
posted on 06/27/2013 4:24:24 AM PDT
(REMEMBER THE RIVER RAISIN!)
80 km is in the mesosphere. And I thought all weather took place in the troposphere.
posted on 06/27/2013 4:34:00 AM PDT
by Telepathic Intruder
(The only thing the Left has learned from the failures of socialism is not to call it that)
posted on 06/27/2013 4:41:17 AM PDT
(REMEMBER THE RIVER RAISIN!)
posted on 06/27/2013 4:45:58 AM PDT
You made my morning with that!
posted on 06/27/2013 4:51:42 AM PDT
by left that other site
(You Shall Know the Truth, and the Truth Shall Set You Free...John 8:32)
Moscow? That looks like the Brandenburg gate in Berlin.
posted on 06/27/2013 6:36:22 AM PDT
(Do you like it, do you like it. Scott? I call it Mr. and Mrs. Tennerman chili.)
Curtain of Crepuscular Rays at Dawn, on June 17, 2013. Taken from Coral Towers Observatory in Australia. Credit and copyright: Joseph Brimacombe.
Read more: http://www.universetoday.com/#ixzz2XSjl9Rs5
posted on 06/27/2013 4:32:26 PM PDT
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