What Kind of Mercury Atmospheric?

Astronomy Science ~ The atmosphere of Mercury is very thin. With a mass of about 5.5 percent of the mass in the Earth, so that the planet h...

Astronomy Science ~ The atmosphere of Mercury is very thin. With a mass of about 5.5 percent of the mass in the Earth, so that the planet has a surface gravity is much weaker and can not hold a lot of gas to create a thicker atmosphere. Plus more proximity to the Sun, combined heat and bombardment of solar wind (streams of high-energy charged particles from the Sun) makes the planet's atmosphere is much thinner than the initial formation of the atmosphere.

However, since 2008, the NASA Messenger spacecraft has studied the thin atmosphere of Mercury showed that nearly half of the oxygen-containing atmosphere while the rest contain sodium, hydrogen, helium and potassium.

Surface of Mercury
Surface of Mercury
One interesting finding in this planet is the presence of water vapor in the atmosphere. Although water vapor is the possible arrest of the comet, the rest may come from deep craters in the polar regions are still constantly dark and cool, allowing water ice to exist.

Read also: Strange And Interesting Facts about Mercury
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Astronomy Science: What Kind of Mercury Atmospheric?
What Kind of Mercury Atmospheric?
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