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Q: How might mercury be different if it had a thicker atmosphere?
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Storms on mercury?

Mercury has no atmosphere to speak of, although its exosphere has some extremely tenous gases, it is nowhere near enough to have storm systems such as you might expect on other planets.


Does Mercury have air and water?

So far, observations of Mercury from ground-based observers and the Mariner 10 spacecraft have not shown evidence of a significant atmosphere compared to other planets. Mariner 10 did observe a tiny amount of helium 1000 km above the surface, but this is probably caused by the solar wind and the breakdown of Mercury's crust. Sodium, potassium and oxygen have also been detected in Mercury's very weak atmosphere, but these elements can be lost when they react with the Sun and Mercury's magnetic field.


Why you would expect that Mercury would not have an appreciable atmosphere?

Because the solar wind would carry it away into space and also Mercury has a small size and therefore a relatively low surface gravity (compared to Earth's). It's also very close to the Sun. Over time the Sun heated its atmospherecausing the gas molecules to move around much faster and eventually escape into space. If Mercury had been much larger or farther from the Sun then it might currently retain an atmosphere like Venus and Earth (and to a lesser extent, Mars) do.


Could life exist on planet mercury?

No. Mercury is to close the the sun for us to live on. Mercury is the closest planet to the sun. No, we'd be fried. But if you are a believer in the unexplained, there might be an extraterrestrial that might be able to handle that sort of heat. Though, most people don't believe in extraterrestrials. If your meaning human life then no. We'd burn up. Now we are only the third planet away from the sun but we are just fine. We are in a perfect state. Living on Mercury would be like living inside a volcano. You might as well be sayin is life possible on Saturn!


Why might Mercury have such extreme temperatures relative to those on earth?

It is hot during the day because it is the closest planet to the sun. It gets very cold on the dark side because Mercury has no atmosphere and its surface is bad at retaining heat. So as soon as it gets dark, all its heat radiates away and it gets very cold.

Related questions

How do you describe mercury's atmosphere?

Mercury barely has an atmosphere at all. So little that it might as well have no atmosphere.


Storms on mercury?

Mercury has no atmosphere to speak of, although its exosphere has some extremely tenous gases, it is nowhere near enough to have storm systems such as you might expect on other planets.


Can gas planets be landed on?

No. The atmosphere just gets thicker and thicker until it crushes any space craft that we might send into it. There is no well defined solid surface like we have on earth and other rocky planets.


How might the earth be different without the atmosphere?

Lifeless, more like Mars


How might the atmosphere be classified?

the atmosphere be classified might a thin layer around earth


Does Mercury have air and water?

So far, observations of Mercury from ground-based observers and the Mariner 10 spacecraft have not shown evidence of a significant atmosphere compared to other planets. Mariner 10 did observe a tiny amount of helium 1000 km above the surface, but this is probably caused by the solar wind and the breakdown of Mercury's crust. Sodium, potassium and oxygen have also been detected in Mercury's very weak atmosphere, but these elements can be lost when they react with the Sun and Mercury's magnetic field.


If the sun wasn't yellow would it be blue?

mabey because the sun might look a different coulor through the atmosphere so it might be green for all we know.


Is there mercury in a computer?

Older computers might have mercury, but most modern computers are Mercury-Free.


Does Mercury have cloud conditions that might exist?

No, there are no cloud conditions in Mercury


Why you would expect that Mercury would not have an appreciable atmosphere?

Because the solar wind would carry it away into space and also Mercury has a small size and therefore a relatively low surface gravity (compared to Earth's). It's also very close to the Sun. Over time the Sun heated its atmospherecausing the gas molecules to move around much faster and eventually escape into space. If Mercury had been much larger or farther from the Sun then it might currently retain an atmosphere like Venus and Earth (and to a lesser extent, Mars) do.


Why does the sun go further below the horizon at night in the tropics than at the poles in winter - shouldn't the tropics theoretically be colder at night?

On a world like Mercury in which there is no atmosphere to moderate the temperatures, this might be possible. (The dark side of Mercury is remarkably cold, for a planet so close to the Sun! Of course, Mercury rotates very slowly, so the dark side has a long time to radiate its heat away.) On the Earth, our atmosphere traps retained heat from the ground or water and prevents it from being rapidly radiated into space.


Can we see any planets from mercury?

Yes. You could probably see all of the planets that you see from Earth as well as Earth itself. You might also be able to see Uranus as well from the night side of Mercury. Uranus is generally too faint to be seen from Earth but Mercury, which would not be much farther away from than Earth is, has no atmosphere to distort or obscure light from the planet.