Ceres: Mysterious spots on the dwarf planet3 01. 03. 2015
The Dawn probe is relentlessly approaching the dwarf planet Ceres. In her last month's journey, she had made images sharper than Hubble's telescopes. But the latest picture surprised everyone. Not that we find the oceans with a lively life, but two peculiar bright points of a high albedo (reflection of sunlight).
19.Form 2015 was the Dawn probe distant from 46 000 km from Ceres and the pictures were taken at that time.
Explanation of the origins of these two spots can be from the active volcano (nothing special in our solar system, see Jupiter moon Io or nitrogen geysers on the Neptune Moon Triton), but it can also be a high concentration of ice or rock reflecting a high percentage of light types of glass, volcanic rock, etc.). To identify the origin of these spots, the Dawn is far away.
Journey to orbit
A visit to Vesta
Dawn's son 2011-2012 visited the giant asteroid (asteroid) Vesta and brought a lot of information about this remarkable planet. She took 30 000 images of the asteroid surface. It also carried out invaluable measurements that allowed us to understand in greater detail the geological history of the third largest asteroid planet between Mars and Jupiter.
The mean diameter of the Vestas is 525 km, while Ceres, the largest object in the main asteroid belt, has a 950 km. Ceres and Vest are the two most massive bodies in the main belt of asteroids, and the third largest massif of the Pallas has only a slightly larger dimension than the Vesta.