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2011-08-04 12:03:38
2011-08-04 12:03:38

no, these are the gas giants, or four outer gas planets. The terrestrial planets are the four inner planets, which are much smaller.


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Jovian planets do not have a solid surface, therefore their atmospheres are thick all the say to where their surface would be. Their atmospheres have more gasses than those surrounding terrestrial planets.

No. As the name gas giant implies, these planets are made largely of gas. They have extremely thick atmospheres.

The four Jovian planets in our solar system are Jupiter, Saturn, Uranus and Neptune. The four terrestrial planets are Earth, Venus, Mars and Mercury. The difference between the Jovian planets and the terrestrial planets is that Jovian planets are enormous and made of gasses and ices while terrestrial planets are relatively small and made of rocks and metals. Other differences are that terrestrial planets have high densities, rotate slowly, have no moons or magnetic fields and have thin atmospheres (Earth is an exception because it has a moon and a magnetic field), while Jovian planets have low densities, rotate rapidly, have many moons and a magnetic field and have thick atmospheres.

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.

Define thick - all 4 outer planets plus Venus have thicker atmospheres than Earth.

All of the outer planets are large in size, low in density, and have very thick atmospheres made primarily of hydrogen and helium.

they all have thick atmospheres because their mass is large and they all have Hydrogen and stuff

There are four inner planets, which starting with the closest to the sun are Mercury, Venus, Earth, and Mars. Of these, Venus and Earth have thick atmospheres, whereas Mercury and Mars don't.

The gas giants and the terrestrial planets initially formed in similar ways, however, the powerful solar wind of the young sun stripped away the first atmospheres of the inner planets. The outer planets were less affected by this and so retained their thick atmospheres of hydrogen and helium. Today, the outer planets recieve much less heat from the sun than do the inner planets, allowing various ices to form.

Due to their large size and proportionately high gravity, the atmospheres of these planets are quite thick.

There are the gas giant planets (Jovian planets) and the rocky planets (Terrestrial planets).Terrestrial planets comprise Mercury, Venus, Earth and Mars.They are mainly composed with solid rocks.They have little or no atmosphere.They are found close to the Sun in the warmer region of the Solar System.They are relatively small in size.They have few or no moons.They do not have ring systems (like Saturn).Jovian planets comprise Jupiter, Saturn, Uranus and Neptune.They are composed of thick gaseous atmospheres with liquid interiors. Nothing can land on them.They have thick atmospheres.They are found far from the Sun in the colder region of the Solar System.They are very large in size.They have many moons.They do possess ring systems.Minor comment: It's nice to see "comprise" used properly.

They are pretty large. They are mostly gaseous, without a large metallic core Their atmospheres are very thick. They have several moons. That's not really a feature of gas giant planets, but very massive planets in general.

The bigger the planet is, the cloudier it is. Terrestrial Animals live in Rock and Terrestrial is Rock. Too much clouds (not thick) will be deep, as deep as Neptune's size or larger. Very Large ones like Sun will burn!. I think because it is very very thick

When the sun was young it released an intense solar wind. This prevented the inner planets from developing thick atmospheres like the outer planets. The outer planets, however, were spared from this fate, and were able to accrete large quantities of gasses.

gravity keeps the gas giants planets gases from escaping so they have thick atmosphere

Uranus and Neptune both have thick, gassy atmospheres that were formed by the left-overs of the formation of the planets.

The outer planets have thick atmospheres because they are so big. The bigger the planet, the stronger the gravitational pull. This means that the bigger planets pull in more gasses, which creates a bigger, thicker atmosphere.

they are thick and gaseous, mostly hydrogen and helium. Most have very strong winds.

It varies. Mercury has almost no atmosphere at all, while Venus has a thick atmosphere. It is not as thick as the atmosphere of a gas giant.

Hydrogen and helium mainly. The 'Outer Planets' are composed of a rocky, metallic core with a thick layer of gas surrounding. As such, they are less dense than the 'Inner Planets' also called the 'Terrestrial (earth-like) Planets' which are mainly rock, ice and metal with thin atmospheres of carbon dioxide, nitrogen and in the case of the Earth: oxygen

They are called the "outer planets." But also the "gas giants" because they all have thick atmospheres and no accessible surface.

They're also called jovian planets (after Jupiter), giant planets (because they're large), and gas giants (because they have no solid surface and thick, gaseous atmospheres.) Not everyone agrees with calling them all gas giants though, some people call Uranus and Neptune ice giants because they contain less gas and more icy material than Jupiter and Saturn.

Uranus, Jupiter, Neptune and Saturn have the thickest atmospheres, as they are further away in the solar system. Earth, Mars, Venus and Jupiter are the closest in the solar system and therefore have the thinnest atmospheres.

The outer planets are not a very good example of rigid bodies because of their very thick atmospheres, but it is common to assume they are rigid for calculating the angular momentum.

There is no atmosphere on the moon.

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