Saturn ring system

Space probe Cassini captured Saturn’s F ring

Rings of Saturn represent system of flat concentric educations from ice and a dust, settling down in the equatorial plane of Saturn. The plane of the appeal of system of rings coincides with the plane of the equator of Saturn. The size of particles of a material in rings – from micrometers to centimeters and then tens meters. Structure of the main rings: water ice (about 99 %) with impurity of a silicate dust. Thickness of rings is extremely small in comparison with their width (from 7 to 80 thousand kilometers over the equator of Saturn) and makes from one kilometer to ten meters. Lump of a material in system of rings is estimated at 3×1019 kilograms.

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Saturn moon dione Subsurface water

Subsurface water on Saturn moon Dione

According to scientists, the Saturn moon Dione, can have the huge subsurface water, which is one more potential place of existence of extraterrestrial life. In Solar system there is a lot of water, and a number of satellites of giant planets are covered with water armors. As scientists claim under this shell are hidden, enormous oceans. Such space bodies as Entselad, the Titan, Europe, Ganymede and others, are objects of the most fixed research of scientists. Now to the list of potentially manned space bodies joined also the Saturn moon Dione. As well as many similar bodies, the Saturn moon Dione, mainly, consists of ice, and on its surface it is possible to make out a large number of craters. Diameter of the satellite makes 1123 kilometers. In general, this heavenly body very much bears a strong resemblance to other satellite of Saturn – Rea.

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Topographic map of Saturn satellite Titan

The first topographic map of Saturn satellite Titan

Scientists collected a first-ever global topographic map of the Titan, the largest satellite of Saturn, using radar pictures from NASA spaceship. The new topographic map of the Titan represents the gathered pictures and data of radar of the spaceship of Cassini. It shows an unprecedented view of a surface of the Titan and has to help scientists to learn more about one of the heavenly bodies most similar to Earth in Solar system. By the words of Ralf Lorent (the member of team of the spaceship Cassini from laboratory of applied physics to Lorel, the State of Maryland) on the Titan there is a lot of interesting things: fluid liquids and movement of sandy dunes. But to understand these processes, it is necessary to know a district inclination. It is especially useful for those, who studies a hydrology and modeling of climate and weather of the Titan for which it is important to know about heights or lowlands for creation of models.

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Saturn and moon

Unusual occurrence – Saturn will approach to the Moon

On May 22 we will be able to observe bright and quite unusual occurrence when planet Saturn will come nearer to the Moon. This week is really full interesting astronomical of events. So, besides, that this week Mercury, Venus and Jupiter will gather on the evening sky in the form of a triangle with the parties about 2 degrees, we also will be able to observe rather bright planet Saturn near our natural satellite. Today the Moon enters a full moon phase. It will approach with Saturn as much as possible and “will concern” bottom edge of northern border of a terrestrial penumbra. Then will pass through zodiac constellations of the Lion, the Maiden, Scales, the Scorpion and the Sagittarius, possessing night visibility.

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Hurricane on Saturn

NASA Cassini spacecraft captured big hurricane on Saturn

The big hurricane on a surface of Saturn, similar to a rose bud, captured the NASA Cassini spacecraft. Scales of the hurricane impress: its diameter makes 2 thousand km that in 20 times more, than the biggest hurricane on Earth. Cassini allowed researchers to make out for the first time a hurricane on Saturn in detail. Wind speed in the hurricane center as it became clear, reaches 150 m/second. Unlike terrestrial storm, which move on a planet, the hurricane on Saturn isn’t mobile and is on its North Pole. On Earth hurricanes, as a rule, drift to the north, because of the turbulences of a wind caused by movement of a planet.

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Rings of Saturn

Rings of Saturn were attacked by rocks in space

Rings of Saturn are continuously bombarded by rocks in space. Cassini spacecraft being in an orbit of Saturn since 2004, helped scientists to observe a picture of bombing of Saturn rings fragments of space rocks. Collision of these fragments with rings of Saturn lifts big clubs of a space dust and leaves traces in the form of hyphens on rings. It is well visible on the example of the photo of 2004, when the Cassini chambers recorded collision of rocks with rings of Saturn. Orbit of Saturn around the Sun is equivalent to about 30 terrestrial years. Approximately for the 15th year of this cycle, the night of Saturn becomes almost equal to day of Saturn. Just such period fell on 2009 that helped scientists to study in more detail better that happens to rings of Saturn.

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Lakes on the Titan

Liquid lakes on Titan can dry up completely

For a long time researches observing the Saturn and its system of satellites, and came to a conclusion, that liquid lakes on Titan can dry up completely. The American Kassini spacecraft and its onboard scientific tools long time investigated the largest satellite of Saturn – the Titan, which is known that is the only heavenly body in our Solar System, without considering our own planet, which has liquid on the surface. Notorious lakes on Titan play on this natural satellite the same role, as water on Earth. Methane on the Titan takes active part in liquid circulation. It evaporates, and then drops out in the form of a precipitation. Everything happens practically just as and on Earth to water. Recently, scientists came to a conclusion, that on the Titan is not only methane, but also ethane, which evaporates not as rapidly as methane, but also it can not help the Titan, with preservation of its liquid on a surface. By estimates of scientists of team of the American Space Agency NASA

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Titan satellite of Saturn

Methane and ethane in the satellite of Saturn

A team led by Christophe Sotin of NASA’s Jet Propulsion Laboratory in Pasadena, drew a conclusion, that there is not only methane on the Titan, but also his colleague – ethane. Titan is the largest satellite of Saturn For a long time the scientists from the American Space Agency NASA investigated the largest natural satellite of Saturn – the Titan, who is well-known for that is the only heavenly body, except Earth, which has stable liquid on the surface. It is known, that the Titan has liquid methane lakes of the surface. Methane on a surface of the Titan plays the same role, as water on Earth. It evaporates, and then drops out in the form of a precipitation. Long-term supervision over a surface of the Titan with help of the American spacecraft Kassini satellite and its onboard scientific tools show that the lakes on a surface of the Titan gradually dry up and become the smaller size on the occupied space.

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Saturn Storm

Rain in atmosphere of Saturn

The group of astronomers from LeicesterUniversity (Britain) collected the proofs on which the rings of Saturn daily lose huge volumes of substance, which drops out in a planet ionosphere. It is known, that rings of a planet consist both of submillimetric particles of ice, and of huge blocks with size in kilometers. If large fragments of ice move in rings on Keplerian orbits, movement of small particles if they receive rather big electric charge a bit different. Like particles of a solar wind in near-earth space, these micro particles of ice are capable to leave the plane of rings and, being cast over power lines of a magnetic field, to travel to Saturn. If this is so, scientists argued, a certain stream of weight has to drop out constantly at different widths of the atmosphere of Saturn. To see a stream of the frozen water they didn’t hope, but it was succeeded to notice characteristic signs of this process. Scientists noted, that this sleet drops out in a planet ionosphere generally at the widths from 25 to 60 degrees, and as a whole such loaded precipitation covers from 30 to 43% of a atrmosphere of Saturn. For this moment it is unclear, whether water reaches the planet atmosphere in the form of ions or in the form of the submillimetric loaded particles of ice. The main result is not in an assessment of evolution or time of life of rings, and that we see in the atmosphere of Saturn.

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