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You entered: noctilucent clouds
![Серебристые облака](https://images.astronet.ru/pubd/2006/11/14/0001217818/noctilucent_pp_big.preview.gif)
26.07.1999
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.
![Серебристые облака над Парижем](https://images.astronet.ru/pubd/2022/07/12/0001841054/NoctilucentParis_Kulik_1080.preview.jpg)
12.07.2022
It's northern noctilucent cloud season. Composed of small ice crystals forming only during specific conditions in the upper atmosphere, noctilucent clouds may become visible at sunset during late summer when illuminated by sunlight from below. Noctilucent clouds are the highest clouds known and now established to be polar mesospheric clouds observed from the ground.
![Серебристые облака](https://images.astronet.ru/pubd/2005/06/20/0001206362/noctilucent_pp.preview.jpg)
15.06.2003
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.
![Серебристые облака](https://images.astronet.ru/pubd/2005/06/20/0001206364/noctilucent_pp.preview.jpg)
19.06.2005
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.
![Северное сияние и серебристые облака](https://images.astronet.ru/pubd/2018/06/21/0001416485/IMG_5938Mauduit_1024.preview.jpg)
21.06.2018
Skies after the near-solstice sunset on June 17 are reflected in this calm lake. The tranquil twilight scene was captured near Bashaw, Alberta, Canada, northern planet Earth. Usually spotted at high latitudes in summer months, night shining or noctilucent clouds hang just above the horizon, transfusing light into a darker sky.
![Серебристые облака над Флоридой](https://images.astronet.ru/pubd/2024/07/09/0001932886/NoctilucentFlorida_Pouquet_960.preview.jpg)
9.07.2024
These clouds are doubly unusual. First, they are rare noctilucent clouds, meaning that they are visible at night -- but only just before sunrise or just after sunset. Second, the source of these noctilucent clouds is actually known.
![Персеид, северное сияние и серебристые облака](https://images.astronet.ru/pubd/2016/08/11/0001367223/GS_20150813_Perseid_4352_v2_1024.preview.jpg)
11.08.2016
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.
![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.
![Серебристые облака над парижским фейерверком](https://images.astronet.ru/pubd/2018/07/15/0001422956/paris.preview.png)
10.07.2018
It's northern noctilucent cloud season -- perhaps a time to celebrate! Composed of small ice crystals forming only during specific conditions in the upper atmosphere, noctilucent clouds may become visible at sunset during late summer when illuminated by sunlight from below.
![Серебристые облака над Францией](https://images.astronet.ru/pubd/2016/07/10/0001365752/Lericque-Simon-nlc06072016-3-ok_1467777140_1152c.preview.jpg)
9.07.2016
Bright noctilucent or night shining clouds are not familiar sights from northern France. But these electric-blue waves coursed through skies over the small town of Wancourt in Pas-de-Calais on July 6, just before the dawn.
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