Yesterday, December 14 (12:26)
Bright creations Ceres (dwarf planet orbiting within the asteroid belt between the orbits of Mars and Jupiter) are probably the decks of magnesium sulphate.
A few months before reaching probe Dawn to Ceres, the eyes of scientists published an amazing sight: a very clear formation on the surface of the dwarf planet. As you approach the probe to the target appeared more bright areas, and the biggest of them turned out to be the bottom of a relatively large crater. A total of bright areas were detected more than 130
Scientists have wondered what may be the bright areas. The three most frequently suggested explanation is water ice layers, the layers of clay and various mineral salts. Researchers from the German Max Planck Institute have determined that it is magnesium sulfate (a kind of salt) is in arrears in the bright points in Ceres. It is also possible that the salt is mixed with an amount of silicates.
The mechanism of formation of bright spots on the surface of Ceres is probably as follows: by the impact of a meteorite comes to unveiling the deck layer of water-ice, which is also located mainly magnesium sulfate. This is followed by sublimation of the water and on the surface of Ceres is only the salt. It is worth noting that the initial measurement of the gas envelope around Ceres suggest that it was the bright areas sublimates water. This means that under the surface Ceres is a layer of salt water ice.
December 8 probe Dawn has completed the process of lowering the orbit around Ceres. The current height of the orbit of the probe is only approx. 385 km.
Article from category: Technauka
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