The white spots on Ceres are a source of atmospheric
Scientists have been able to consider in detail the surface closest to the Earth dwarf planet.
The Dawn probe has made unique shots of the dwarf planet Ceres, which helped to trace the interaction of Sun light with the surface of the planetoid, according to the NASA website.
The spacecraft has two years studying Ceres, the largest object in the main asteroid belt between the orbits of Mars and Jupiter. The interest of scientists to this body is due to the fact that it is the embryo of the planet, staying in development.
The first photos from the Dawn probe was obtained in the spring of 2015, shortly after his arrival to the planet. Then the scientists found the photo of unusual phenomena white spots in the crater Okkator and mount Akhun with a height of four kilometers.
Later, scientists found that the Sea is not a mountain but an extinct cryovolcano. White spot was the source of the temporary atmosphere of Ceres, consisting of water vapour.
In addition, in some parts of the world, scientists have found pure ice. This suggests that the surface of Ceres is constantly updated, because the ice should have evaporated into space.
To check all of these facts, the Dawn team is still in the beginning of a series of very long and complex orbital maneuvers, which made it possible to bring the probe to a point located on the straight line between the Sun and Ceres.
Scientists call this point the “point of the opposition.” Thanks to her, the probe was able to obtain enough unique images of the crater Okkator and other regions of Ceres.
New images should help scientists to clarify the composition of ice on the dwarf planet and study it in more detail.
Also, planetary scientists were able to see how Sun light interacts with the dust and soil particles Ceres, and to understand how much lighter the planet’s surface with direct lighting.
This information, as the scientists explain, allows to accurately estimate the size of soil particles, determine how much of it then, and uncover many other important properties.
Previously Dawn has sent new detailed images of the “pyramid” of Ceres, the mysterious mountain of Akhun.
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