In terms of its physical characteristics, Mercury resembles the Moon. It has no natural satellites, but it has a very rarefied atmosphere. The planet has a large iron core, which is the source of a magnetic field, the strength of which is 0.01 of the earth's magnetic field.
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Mercury
In terms of its physical characteristics, Mercury resembles the Moon. It has no natural satellites, but it has a very rarefied atmosphere. The planet has a large iron core, which is the source of a magnetic field, the strength of which is 0.01 of the earth's magnetic field.