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You entered: clouds
![Радужная облачная шапка над Зимбабве](https://images.astronet.ru/pubd/2014/02/19/0001301369/pileus_lowenstein_960.preview.jpg)
19.02.2014
Yes, but how many dark clouds have a multicolored lining? Pictured, behind this darker cloud, is a pileus iridescent cloud, a group of water droplets that have a uniformly similar size and so together diffract different colors of sunlight by different amounts.
![Радужные облака](https://images.astronet.ru/pubd/2003/03/11/0001187558/IridescentCloud_danielsen.preview.jpg)
10.03.2003
Why would clouds appear to be different colors? A relatively rare phenomenon known as iridescent clouds can show unusual colors vividly or a whole spectrum of colors simultaneously. These clouds are formed of small water droplets of nearly uniform size.
![Темное облако Хамелеон-II](https://images.astronet.ru/pubd/2019/08/03/0001488046/Cha-II-Cloud-WebAstroDon1024.preview.jpg)
1.08.2019
A small constellation hiding near the south celestial pole, The Chamaeleon boasts no bright stars. Stars are forming within its constellation boundaries though, in a complex of dark, dusty molecular clouds. Some 500 light-years...
![Грозовой воротник над Висконсином](https://images.astronet.ru/pubd/2013/09/09/0001292919/rollcloud_hanrahan_960.preview.jpg)
8.09.2013
What kind of cloud is this? A type of arcus cloud called a roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud.
![Грозовой воротник над Уругваем](https://images.astronet.ru/pubd/2016/06/12/0001364171/rollcloud_eberl_960.preview.jpg)
11.06.2016
What kind of cloud is this? A type of arcus cloud called a roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud.
![Персеид, северное сияние и серебристые облака](https://images.astronet.ru/pubd/2016/08/11/0001367223/GS_20150813_Perseid_4352_v2_1024.preview.jpg)
10.08.2016
Night skies over northern Sweden can hold some tantalizing sights in August. Gazing toward the Big Dipper, this beautiful northern skyscape captures three of them in a single frame taken last August 12/13. Though receding from northern skies for the season, night shining or noctilucent clouds are hanging just above the horizon.
![Линзовидное облако над горой Этна](https://images.astronet.ru/pubd/2019/08/19/0001492236/EtnaCloudsMoon_Giannobile_960.preview.jpg)
18.08.2019
What's happening above that volcano? Although Mount Etna is seen erupting, the clouds are not related to the eruption. They are lenticular clouds formed when moist air is forced upwards near a mountain or volcano.
![Грозовой воротник над Висконсином](https://images.astronet.ru/pubd/2023/08/20/0001906781/rollcloud_hanrahan_960.preview.jpg)
19.08.2023
What kind of cloud is this? A type of arcus cloud called a roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud.
![Серебристые облака над Швецией](https://images.astronet.ru/pubd/2006/07/19/0001214877/nlc_molten.preview.jpg)
18.07.2006
Sometimes it's night on the ground but day in the air. As the Earth rotates to eclipse the Sun, sunset rises up from the ground. Therefore, at sunset on the ground, sunlight still shines on clouds above.
![Земля, облака, небо, комета](https://images.astronet.ru/pubd/2003/06/23/0001191148/halebopp1_ja.preview.jpg)
3.04.1997
Does a comet's dust tail always orbit behind it? Since comets rotate, they shed gas and dust in all directions equally. Small ice and dust particles expelled by the comet, however, are literally pushed around by sunlight. The smaller the particle, the greater the effect.
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