These are the spots at the maximum magnification available to astronomers.Astronomers, observing objects near and far space, often face interesting phenomena and even mysterious phenomena. True, most of the mysteries are subsequently disclosed - most often after scientists have at their disposal more powerful tools of observation.
It happened this time. Recently, the Dawn probe sent
detailed photos of the very white spots that stirred the minds of scientists and ordinary people. Among other explanations, one could come across the fact that these are domes of settlements of alien civilizations. But, unfortunately (and perhaps fortunately, who knows) the stains really turned out to be stained, and not the work of the brothers in their minds.
But first things first. Qualitative photographs of these objects were
made after the Dawn probe entered a calculated orbit 35 kilometers above the surface of Ceres. In particular, the crater
Okkator , the “homeland” of the spots, as well as a number of other areas of the surface of the planetoid hit the lenses of its cameras. It is worth noting that the probe came out at a maximum approximation to the object of its research three years later after approaching an asteroid. So, three years ago, the probe orbit was 385 kilometers.
Pictures of the Occator crater taken by astronomers in 2016Now the device was able to take photographs of the surface of the planetoid in the maximum resolution. In particular, this contributes to the minimum distance to the surface. And the photos that scientists have already studied, have shown that the stains are really banal soda.
It is also found on Earth, so there is nothing unusual in such sediments. It seems that just in the center of the crater Okkator there is a
reptilian settlement of large soda deposits. If astronauts ever get to a planetoid, they won't have any problems with this connection.
According to the engineers of the mission, the team is extremely pleased that the puzzle was solved. And all thanks to the scientific instruments of the apparatus, which were carefully checked before being sent into space.
Now scientists have to answer the question of where so much soda came from at Ceres. Professionals are very interested in what is the root cause of the appearance of such deposits. One hypothesis is that the spots formed during crystallization from a very saturated salt solution. Crystallization occurred after heating a subsurface substance as a result of an impact collision with an object like a large meteorite. Maybe there was no collision, but in fact, under the surface of the planetoid there are caverns with saline or even an entire ocean of very salty water. And this solution, gradually seeping through the cracks, crystallizes at the exit points.
In addition to soda, quite complex organic substances were
found on the surface of Ceres. They were found right on the surface of the dwarf planet. Scientists from Brown University believe that these sites may contain higher concentrations of organic matter than was thought. The results of their research, scientists told in an article published in Geophysical Research Letters.
"Our work shows that the interpretation of the results of experiments set up during the search for substances of a certain type may differ, and quite strongly," said Hanna Kaplan, a representative of the South-West Research Institute.
In 2016, scientists
proved that there are both water and cryovolcanoes on Ceres - just like on Enceladus. One of the most notable water sources is Mount Akhuna Mons, with a height of 4 km and a base diameter of 17 kilometers. It is the only mountain in Ceres, and it throws water onto the surface of the planetoid with dissolved ammonia and other chemical compounds.
Ceres is the closest to the Sun and the smallest among the known dwarf planets of the Solar System. It is located, like a number of other planetoids, in the asteroid belt. Ceres was discovered on January 1, 1801 by the Italian astronomer Giuseppe Piazzi at the Palermo Astronomical Observatory. For some time, Ceres was regarded as a full-fledged planet of the solar system. According to the results of the clarification of the notion “planet” by the International Astronomical Union on August 24, 2006, at the XXVI General Assembly of the IAS, it was referred to the dwarf planets. She was named after the ancient Roman fertility goddess Ceres.
There is no doubt that in the future the planetoid will present many more surprises to scientists.