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Because terrestrial planets - those made of rocks - could never become so large. The gravitation pressure on a "massive" rock planet would be so great that it would rupture and break apart.
Gas does not have this problem, so they can grow to much larger sizes.
Also, the is more "gas" than "rock" in the Universe, so there are more building material for large gas giants.
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∙ 13y ago
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What is earth a terrestrial planet or a gas giant?
A terrestrial planet, Gas giant planets are made of gas....
Is Neptune a rocky or a gas giant?
Neptune is a gas giant - or to be precise an ice giant.
Are inner planets gas giants?
No, the inner planets are the terrestrial or rocky planets. The outer planets are the gas giant planets; Jupiter, Saturn, Uranus and Neptune. They are mainly made up of Hydrogen and Helium gas.
Are otter planets made out of gas?
i think the question is " are other planets made out of gas" because as far as i know there are no otter planets, although that would be cool. not all planets are made out of gas, some are gas though. neptune is a gas giant, that's just one example though
Do the gas giants have thinner atmosphere than the terrestrial planets?
No. As the name gas giant implies, these planets are made largely of gas. They have extremely thick atmospheres.
What is earth a terrestrial planet or a gas giant?
A terrestrial planet, Gas giant planets are made of gas....
What is earth a terrestrial planet or a gas giant earth?
A terrestrial planet, Gas giant planets are made of gas....
Is Jupiter terrestrial?
No. It is a gas giant. Terrestrial planets are planets that are mainly made of land.
Why are planets named gas giants?
Because they are mostly made out of gas and they are big or giant
Which planets have a giant gas?
The term `gas giant` is used to describe a type of planet in itself, large planets further out from the sun that are mainly made from hydrogen and helium.
Is Neptune a rocky or a gas giant?
Neptune is a gas giant - or to be precise an ice giant.
How the sizes of the inner planets compare to the sizes of the gas giant planets?
The inner planets are smaller than the gas giant (outer) planets.
Is Saturn the only gas giant plant?
No. Saturn is not the only "gas giant".All the planets after Mars(not including dwarf planets) are made up of gas. That mean Jupiter, Saturn, Uranus, and Neptune.
Are inner planets gas giants?
No, the inner planets are the terrestrial or rocky planets. The outer planets are the gas giant planets; Jupiter, Saturn, Uranus and Neptune. They are mainly made up of Hydrogen and Helium gas.
Are otter planets made out of gas?
i think the question is " are other planets made out of gas" because as far as i know there are no otter planets, although that would be cool. not all planets are made out of gas, some are gas though. neptune is a gas giant, that's just one example though
What are the giant planets made up largely of?
They are mostly different kinds of gas.
Do the gas giants have thinner atmosphere than the terrestrial planets?
No. As the name gas giant implies, these planets are made largely of gas. They have extremely thick atmospheres.
