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It depends on the planet. Some planets, like Jupiter, are made from gas. While others, like Earth, are rocky planets.

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14y ago

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Are the jovian planets similar in mass to the terrestrial planets?

No. The Jovian planets are much more massive than the terrestrial planets.


How much mass does Jupiter have compared to all the other planets?

Jupiter contains about 70% of the total mass of all the planets in our solar system. It is by far the most massive planet, with a mass that is more than twice the combined mass of all the other planets.


What planets in the solar system have mass?

All planets have mass.


Why is it more difficult for gases to escape from Jovian planets than terrestrial planets?

It is more difficult for gases to escape from Jovian planets because they have much stronger gravitational forces due to their larger mass, which means gases are held more tightly to the planet. Terrestrial planets have lower mass and weaker gravity, making it easier for gases to escape into space.


Is mass larger on bidder planets or smaller?

Mass does not change with gravity. Weight increases on BIGGER planets and decreases on smaller planets.


What three planets are made of mass?

All the planets are made of "matter" and that has "mass".


How much bigger is the sun than the other planets?

The sun is a star, not a planet. The sun has about 700 times the mass of all the planets combined.


How much gravity does it take to keep planets in orbit?

A fair amount, though it depends on the distances of the planets and their masses. The important thing is that the gravity (and therefore mass) of the central sun must be much greater than that of the planets, other wise they would orbit each other (or the sun would orbit the planet if its mass was much greater).


On what planet would a person mass be greatest?

Mass does not change when one is traveling between planets, because mass is the measure of how much mater there is.


What do you call a huge mass of stars and planets?

A huge mass of stars and planets is called a galaxy.


Where do the planets get gravity?

Planets have gravity because they have mass.


How much do PLANETS wight?

If you mean "weight", it doesn't make much sense to talk about a planet's weight. What would you weigh it on? Astronomers talk about a planet's mass instead. The largest planet in our Solar System, Jupiter, has about 300 times the mass of Earth; the smallest one, Mercury, has 0.055 times the mass of Earth. You can look up the mass for other planets on the Wikipedia. Outside of the Solar System, planets that are several times as massive as Jupiter are known.