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Keywords: Saturn, Dione
![Япет: спутник Сатурна со странной поверхностью](https://images.astronet.ru/pubd/2005/02/01/0001202666/iapetus_cassini.preview.jpg)
31.01.2005
What has happened to Saturn's moon Iapetus? A strange ridge crosses the moon near the equator, visible near the bottom of the above image, making Iapetus appear similar to the pit of a peach. Half of Iapetus is so dark that it can nearly disappear when viewed from Earth.
![Япет: раскрашенный спутник](https://images.astronet.ru/pubd/2009/08/09/0001235766/iapetus3_cassini.preview.jpg)
9.08.2009
What has happened to Saturn's moon Iapetus? Vast sections of this strange world are dark as coal, while others are as bright as ice. The composition of the dark material is unknown, but infrared spectra indicate that it possibly contains some dark form of carbon.
![Янус: картофельный спутник Сатурна](https://images.astronet.ru/pubd/2006/11/07/0001217394/janus_cassini.preview.jpg)
6.11.2006
Janus is one of the stranger moons of Saturn. First, Janus travels in an unusual orbit around Saturn where it periodically trades places with its sister moon Epimetheus, which typically orbits about 50 kilometers away. Janus, although slightly larger than Epimetheus, is potato-shaped and has a largest diameter of about 190 kilometers.
![Гигантское пылевое кольцо вокруг Сатурна](https://images.astronet.ru/pubd/2009/10/13/0001236477/saturndustring_spitzer.preview.jpg)
13.10.2009
What has created a large dust ring around Saturn? At over 200 times the radius of Saturn and over 50 times the radius of Saturn's expansive E ring, the newly discovered dust ring is the largest planetary ring yet imaged. The ring was found in infrared light by the Earth-orbiting Spitzer Space Telescope.
![Эпиметей и Янус: верные спутники Сатурна](https://images.astronet.ru/pubd/2005/11/02/0001209180/interchangeable_cassini.preview.jpg)
1.11.2005
These two moons change places. Epimetheus and Janus, two small moons of Saturn, actually switch positions as they orbit their home planet. The orbital radii of the moons are strangely separated by less than the radii of the moons themselves: about 50 kilometers. One moon orbits Saturn well ahead of the other, at first.
![Солнечная система в объективе веб-камеры](https://images.astronet.ru/pubd/2001/07/17/0001169831/ssmontage_chester.preview.jpg)
14.07.2001
Ranging throughout the solar system, these pictures all have something in common. They were taken with an 8 inch diameter telescope, a size popular with amateur astronomy buffs, and slightly modified "web cam" of the type widely used to send images out over the internet.
![Щель Энке возникла из-за проходов спутника Сатурна](https://images.astronet.ru/pubd/2004/07/02/0001198606/encke_cassini_fc1.preview.jpg)
2.07.2004
Yesterday, Cassini became the first spacecraft to enter orbit around the gas giant Saturn, rocketing through a 25,000 kilometer wide gap in the distant planet's magnificent system of icy rings at about 15 kilometers per second.
![Кассини смотрит на Сатурн](https://images.astronet.ru/pubd/2017/05/01/0001381864/SaturnInsideOut2_cassini_960.preview.jpg)
29.04.2017
This is what Saturn looks like from inside the rings. Last week, for the first time, NASA directed the Cassini spacecraft to swoop between Saturn and its rings. During the dive, the robotic spacecraft took hundreds of images showing unprecedented detail for structures in Saturn's atmosphere.
![Сатурн в инфракрасном свете от "Кассини"](https://images.astronet.ru/pubd/2017/04/03/0001379446/SaturnIR_CassiniKakitsev_960.preview.jpg)
2.04.2017
Many details of Saturn appear clearly in infrared light. Bands of clouds show great structure, including long stretching storms. Also quite striking in infrared is the unusual hexagonal cloud pattern surrounding Saturn's North Pole. Each side of the dark hexagon spans roughly the width of our Earth.
![Ярче Марса](https://images.astronet.ru/pubd/2010/08/27/0001246785/VeMaSpicaDesert_tafreshi900c.preview.jpg)
27.08.2010
Even though you may have just read an email claiming Mars will be incredibly bright tonight, the brightest star on the horizon is not Mars. From central Iran on August 24th, the brightest star in this twilight desert skyview is Venus, aka the Evening Star.
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