2020-08-12

The Dawn probe saw the strangest place in the solar system

By yqqlm yqqlm

In the months of 2018, NASA’s spacecraft took pictures of one of the strangest places in the solar system. As NASA’s Dawn spacecraft ran out of its last drop of fuel, it provided exciting opportunities for scientists Space observation data.

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In the task In the last few months, Dawn flew just 22 miles (35 kilometers) over the surface of the dwarf planet and concentrated its energy on the Okato crater. Observations indicate that some geological activity is bringing salt water to the surface, and scientists hope to observe it carefully.

Ceres:a strange dwarf planet

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Mark Lehman, mission director of NASA’s California Jet Propulsion Laboratory, looked at one of the strangest places in the solar system on NASA’s spacecraft:“The Dawn completed an extraordinary alien expedition, and its achievements far exceeded our expectations.”

The new study finds that the Okato crater is about 22 million years old and spans 57 miles (92 kilometers). It has constructed a detailed timetable of geological changes in the crater and assumed low-temperature volcanism. It started 9 million years ago and lasted for millions of years. During this time, salt water infiltrated the upper layer of the rock from Ceres’s mantle, forming a series of bright sediments. This activity did not continue until one million years ago.

A new batch of other research papers analyzed the differences in Ceres’ crust at different locations, how the hills and hills formed inside the crater, and the comparison of saltwater sediments with the activities of the Moon and Mars.

Although the last few months of the Dawn completely changed scientists’ views on dwarf planets and their large craters, this new study cannot satisfy people’s curiosity about this marine asteroid, and it may be new Lay the foundation for Ceres’ mission.