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Why Mars today lacks a global magnetic field like that of Earth?
Wiki User
∙ 12y ago
Mars is much smaller, and therefore contains much less thermal energy. The lesser thermal energy caused Mars to cool faster than the Earth. Without heat in the core, Mars will not generate a magnetic field (the rapidly spinning core is a dynamo of magnetic energy).
Wiki User
∙ 12y ago
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What is the magnetic field of Venus's?
Venus has a small magnetic field created by the interaction of its ionosphere and the solar wind. This is different from most of the intrinsic planetary magnetic fields (those generated by planetary cores) that are commonly spoken about. Venus either lacks an intrinsic magnetic field or it has one that is in the midst of a polarity reversal.
Does Venus's have Auroras?
planet like venus which has no magnetic field, have very irregular aurora.. unlike Earth, Jupiter, or Saturn, which have an intrinsic magnetic dipole field, have aurora in the shape of oval shaped crowns of light on both hemispheres. When the magnetic field of a planet is not aligned with the rotational axis, we get a very distorted auroral oval which might be near the equator, like on Uranus and Neptune. Some of the larger moons of the outer planets are also big enough to have an atmosphere, and some have a magnetic field. They are usually protected from the solar wind by the magnetosphere of the planet that they orbit, but since that magnetosphere also contains energetic particles, some of these moons also have aurorae.
Compared to earth the moon lacks a hydrosphere atmosphere and a magnetosphere?
True
The major planets of the Solar System have different characteristics. Which of the planets listed below is known as a gas giant?
Jupiter is known as a gas giant in the Solar System. It is composed primarily of hydrogen and helium gases and lacks a solid surface. Jupiter is the largest planet in our Solar System and has a strong magnetic field.
What is the phase that result when the Moon is on the opposite side of the Earth from the sun?
Can't answer because there are no examples to choose from. I agree the question lacks information, but the answer must be Full Moon.
Can other planets besides the earth have a magnetosphere?
The magnetosphere is the region around a planet where the solar wind is significantly altered due to the magnetic field of the planet. Planets with a magnetic field arising from internal processes are said to have a global magnetic field. A Global magnetic field will produce a magnetosphere. Six of the planets have global magnetic fields, and hence some magnetosphere; Mercury, Earth, Jupiter, Saturn, Uranus, Neptune. Mars did have one, but when the core froze, that ended the geodynamo. Venus, the near twin of Earth, does not have a geomagnetic field and that is quite perplexing. It too lacks a geodynamo and no one knows why. There are remnant magnetic fields for Mars and Venus, but they are too small to have any significant effect on the solar wind. Jupiter and Saturn have huge magnetic fields and there are only general theories as to what causes them. Uranus has a middling magnetic field, more in the range of Earth's field. The moon has no significant field. We have no idea whether Pluto does or not, but it would be unlikely.
What is the magnetic field of Venus's?
Venus has a small magnetic field created by the interaction of its ionosphere and the solar wind. This is different from most of the intrinsic planetary magnetic fields (those generated by planetary cores) that are commonly spoken about. Venus either lacks an intrinsic magnetic field or it has one that is in the midst of a polarity reversal.
If magnetic compass does not work on moon Why electric motor work on moon?
No because the Moon does not have a magnetic field like the Earth does. The Earth's magnetic field appears to be created by a liquid metalic out core circulating around a solid core. This works like a dynamo which creates the magnetic field around the Earth. The Moon lacks a similar core stucture. This is also the reason why the Monn has no atmosphere.A magnetic compass would not work on the moon, for the moon does not have the magnetic field that the earth has, allowing us to use this device.No, because moon does not have magnetic force like earth
What might happen if earth's magnetic field continues to lose strength?
We would we be exposed to radiation bursts from the Sun--the kind which erupt of the order of once a year (or less).We are shielded by the atmosphere, an absorber comparable to 10 feet of concrete. Solar bursts cannot penetrate that thickness. It is true that the magnetic field of Earth deflects the fast protons of those bursts even before they reach the top of the atmosphere--but that magnetic shield fails near the magnetic poles, yet no extra radiation is detected there at ground level.Without magnetic protection, the solar wind emitted by the Sun would also reach the atmosphere. Could it perhaps strip our atmosphere away?Maybe, given a few billion years, but not quickly. Venus lacks a magnetic field and experiences a stronger solar wind, being closer to the Sun, yet retains a very dense atmosphere. Mars, without a global-size magnetic field, has only a thin one--but the gravity holding down its atmosphere is only 1/3 of ours.
How is the solar waves on Mars deadly?
Solar flares on mars are deadly because it lacks an atmosphere and magnetic pole (like those found on earth) to protect inhabitants from radiation.
How come the moon has less oxygen than earth?
Because unlike Earth, the moon lacks an atmosphere. It also lacks an electromagnetic shield. Because of this any atmosphere on the moon would over time be blown away by solar winds. This doesn't happen to earth because our electromagnetic field generally protects us from solar winds.
Which physical characteristics are the moon lacking that would enable life to exist there?
The moon lacks water, an atmosphere and a magnetic field. Water is necessary for all life we have discovered so far to survive, An atmosphere provides air to breath and a shield from asteroids and meteoroids. An magnetic field is not technically a physical characteristic, but it is necessary to prevent the sun's radiation form scorching life off of a planet.
Does Venus's have Auroras?
planet like venus which has no magnetic field, have very irregular aurora.. unlike Earth, Jupiter, or Saturn, which have an intrinsic magnetic dipole field, have aurora in the shape of oval shaped crowns of light on both hemispheres. When the magnetic field of a planet is not aligned with the rotational axis, we get a very distorted auroral oval which might be near the equator, like on Uranus and Neptune. Some of the larger moons of the outer planets are also big enough to have an atmosphere, and some have a magnetic field. They are usually protected from the solar wind by the magnetosphere of the planet that they orbit, but since that magnetosphere also contains energetic particles, some of these moons also have aurorae.
Compared to a natural forest a wheat field of a farmer lacks?
significant biodiversity
Compared to earth the moon lacks a hydrosphere atmosphere and a magnetosphere?
True
What is Earth's story and who first listened?
your question lacks a subject and a verb
What is the difference in the atmosphere of earth and Mars?
mars atmosphere is thinner and lacks oxygen or water
