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Keywords: Voyager 2, clouds, Neptune
![Темные пятна на Нептуне](https://images.astronet.ru/pubd/2001/08/23/0001170496/neptunespots_vg2.preview.jpg)
21.08.2001
Neptune has spots. The Solar System's outermost gas giant shows a nearly uniform blue hue created by small amounts of methane drifting in a thick atmosphere of nearly colorless hydrogen and helium. Dark spots do appear, however, that are anti-cyclones: large high-pressure systems that swirl in Neptune's cold cloud tops.
![Радужные облака над Альпами](https://images.astronet.ru/pubd/2003/10/14/0001194023/iridescent_esser.preview.jpg)
14.10.2003
Before the sun rose over the mountains, iridescent colors danced across the sky. The unexpected light show was caused by a batch of iridescent clouds, and captured on film in early September in Arolla, Wallis, Switzerland. The peak in the foreground of the above image is Aiguille de la Tsa.
![Дыра в облаке над Алабамой](https://images.astronet.ru/pubd/2004/01/12/0001196010/holecloud_knain.preview.jpg)
12.01.2004
What could create a huge hole the clouds? Such a hole, likely hundreds of meters across, was photographed last month from a driveway near Mobile, Alabama, USA. Very unusual to see, hole-punch clouds like this are still the topic of meteorological speculation. A leading hypothesis holds that the hole-punch cloud is caused by falling ice-crystals.
![Северное сияние над облаками](https://images.astronet.ru/pubd/2003/09/10/0001192898/auroraclouds_cantin.preview.jpg)
10.09.2003
Aurorae usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact air molecules high in the Earth's atmosphere. An oxygen molecule, for example, will glow in a green light when reacquiring an electron lost during a collision with a solar particle.
![Перламутровые облака над Лапландией](https://images.astronet.ru/pubd/2023/02/09/0001879356/PearlCloudDennis7_1024.preview.jpg)
9.02.2023
Vivid and lustrous, wafting iridescent waves of color wash across this skyscape from Kilpisjцrvi, Finland. Known as nacreous clouds or mother-of-pearl clouds, they are rare. But their unforgettable appearance was captured looking south at 69 degrees north latitude at sunset on January 24.
![Трубчатые облака над Небраской](https://images.astronet.ru/pubd/2023/02/12/0001880239/mammatus_olson_960.preview.jpg)
12.02.2023
When do cloud bottoms appear like bubbles? Normally, cloud bottoms are flat. This is because moist warm air that rises and cools will condense into water droplets at a specific temperature, which usually corresponds to a very specific height. As water droplets grow, an opaque cloud forms.
![Спутники Урана, кольца и облака](https://images.astronet.ru/pubd/2003/08/18/0001192430/uranusleft_nic_big.preview.jpg)
26.11.1997
The giant planet Uranus is faint and featureless when viewed in visible light. But this pair of near-infrared mosaics from the Hubble Space Telescope's NICMOS camera reveals moons, rings, and clouds of this distant gas planet.
![Венера: покрытая облаками сестра Земли](https://images.astronet.ru/pubd/2004/05/17/0001198062/venus2_gal.preview.jpg)
16.05.2004
This picture by the Galileo spacecraft shows just how cloudy Venus is. Venus is very similar to Earth in size and mass - and so is sometimes referred to as Earth's sister planet - but Venus has a quite different climate.
![Южное полушарие Нептуна](https://images.astronet.ru/pubd/2003/09/09/0001192890/neptune_south_vg2.preview.jpg)
27.06.1998
Neptune, the Solar System's outermost gas giant planet, is 30 times farther from the Sun than Earth. Twelve years after a 1977 launch, Voyager 2 flew by Neptune and found surprising activity on a planet that receives only 3 percent as much sunlight as Jupiter.
![Полярное сияние над облаками](https://images.astronet.ru/pubd/2001/04/02/0001167084/auroraiceland_shs_big.preview.jpg)
2.04.2001
Aurorae usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact air molecules high in the Earth's atmosphere. An oxygen molecule, for example, will glow in a green light when reacquiring an electron lost during a collision with a solar particle.
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