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∙ 11y agoMercury and Pluto (which is no longer considered to be a planet) have no atmospheres, and neither does our moon.
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What are the two main reason why Jovian planets have much thicker atmoshperes than the Terrestrial planets?
While terrestrial planets are made of rock and have gases in the atmosphere, jovian planets are made almost entirly of gases. If an atmosphere is made of gases in a planet, then the atmosphere of the planets with more gases will be thicker.
Do only the inner planets have atmospheres?
Negative, not only do the inner planets have atmospheres, but the outer planets also have atmospheres. The masses of the outer planets are great, enough easily to hold an atmosphere. In fact it's Mercury, an inner planet, that has almost no atmosphere. True, Mercury has a less mass and the closeness to the sun make it impossible to hold on a atmosphere. As matter in fact, Mars had a atmosphere, but the solar wind had almost eaten all the atmosphere that Mars had.
What is mercurys atmosphere'?
it is made of small amounts hydrogen helium and oxygen. it has almost no atmosphere because of the planets gravity.
Do all inner planets have thick atmospheres?
No. Only Venus has a really thick atmosphere. Mars has only a thin atmosphere and Mercury has almost no atmosphere.
Which is a terrestial planet that has no atmosphere?
Of the inner four terrestrial planets in our solar system - Mercury, Venus, Earth and Mars - Mercury has almost no atmosphere.
What planet has methane in its atmosphere?
Juipter
What property controls the quantity of atmosphere in planets?
What property controls the quantity of atmosphere in planets?
Why do outer planets have a thicker atmospheres than the inner planets?
Gravity is the force that keeps an atmosphere in place, surrounding a planet. Since there is no actual roof or container holding in the atmosphere, gas can always leak away into outer space, if it is not held in place by gravity. So the stronger the gravitational force, the more atmosphere can be retained. Large planets have a lot of hydrogen in their atmosphere, but hydrogen leaks away from smaller planets. Large planets attracted more gas when they were originally formed, as well. Remember that the solar system itself, and everything in it, originally condensed out of an interstellar cloud of gas and dust.
What planet has many craters but no atmosphere?
There are probably a very great number of planets in our galaxy with no atmosphere. Of the 400+ planets that we know of, we can only determine the presence or absence of an atmosphere for the 8 planets in THIS solar system; our technology is not yet good enough to study atmospheres from several light-years distance. Of the planets of this solar system, we are fairly sure that Mercury has no atmosphere to speak of. Of the other seven, we know that Mars has a very thin atmosphere, but enough to use a parachute in. If we include dwarf planets, we can say with some certainty that Ceres doesn't have enough mass to retain an atmosphere, and Pluto's atmosphere is almost certainly all frozen by now.
What type of atmosphere do jovian planets have?
The atmosphere gets thicker and thicker as you go down; the planets basically consist mainly of atmosphere, though those planets are expected to have a solid core.
Do the terrestrial planets have atmosphere?
Yes. all the terrestrial planets have atmospheres. however, in the same area that there are 10 Billion Billion Atoms in earth's atmosphere, (about 1 cubic in) there are about 10 million atoms in mercury's. maercury has almost no atmosphere, and we don't even know what it is, but both mars and Venus's atmospheres are 95 % CO2, but venus's atmosphere is thick, even thicker than earth's, but mars's is thinner than earths. all the terrestrial planets have some kind of atmosphere.
Does space have an atmosphere or is it only planets that have them?
Space does not have an atmosphere. It is generally considered a vacuum. Planets and some moons have atmospheres.
