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It is likely that this magnetic field is generated by a dynamo effect, in a manner similar to the magnetic field of Earth. Near the end of its mission, the MESSENGER spacecraft revealed Mercury's magnetic field to be at least 3.7 to 3.9 billion years old, or older. Mercury is the only inner planet other than the Earth that has a significant magnetic field (220 nT). The magnetic field strength of Mercury at the planet’s surface is approximately 1% that of Earth’s surface field. Two representative MESSENGER orbits are shown in green.
We say that mercury is a weakly diamagnetic substance at room temperature. Mercury's magnetic field is approximately a magnetic dipole (meaning the field has only two magnetic poles) apparently global, on planet Mercury. Mercury has possessed a magnetic field for billions of years, and that field may have once been as strong as the Earth's, researchers say. Credit: NASA Magnetic Fields: Much like Earth, Mercury has a significant, and apparently global, magnetic field, one which is about 1.1% the strength of Earth’s. This comparatively low field strength presents a number of challenges, both theoretically to understand how it is generated and observationally to distinguish the internal field from that due to the solar wind interaction. The magnetic field strength of Mercury at the planet’s surface is approximately 1% that of Earth’s surface field.
The magnetic field strength of Mercury at the planet’s surface is approximately 1% that of Earth’s surface field. Earth has a dipolar field with two poles, but Mercury has a dipolar-quadrupolar one with two poles and a shift in the magnetic equator. Magnetic field sensor is at right end of long boom.
The theoretical device employs Mercury rotating in a superconductive ring to create a Gravitomagnetic field to overcome Earth’s gravity.
Earth's magnetism is generated by the planet's churning hot, liquid-iron core via a mechanism called a magnetic dynamo. Mercury, the planet nearest the sun, shares with Earth the distinction of being one of the two mountainous planets in the solar system with a global magnetic field that shields it … Here we show that convective dynamo models driven … A visualization of Mercury's mysterious magnetic fields. The intrinsic magnetic field of the planet Mercury and the implications of such a field for the planetary interior are also discussed. This contributes to the space weathering of the planet's surface.
With a highly cratered surface and a modest magnetic field, Mercury is a differentiated planet with fractionally the largest iron core of all. At room temperature, the element mercury is not very magnetic at all.
Until Mariner 10 discovered Mercury's magnetic field in the 1970s, Earth was the only other terrestrial planet known to have a global magnetic field.
This is a preview of subscription content, log in to check access. Once again, a NASA space probe is supporting the 6,000-year biblical age of the solar system.
If Mercury's magnetic field is supposed to have lasted for many millions of years, then it should be very stable over vast time periods.
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