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The planet's strong force of gravity holds the atmosphere down and stops it escaping. Atmospheric gases have masses, and the Earth's atmosphere has a mass of about 1.2 kg per cubic metre.

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12y ago

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Why do outer planets not lose their gases?

They are massive enough to have a strong gravitional field which stops the gases escaping.


Why are outer planets made of gas?

Outer planets are made of gas because they formed far from the sun where it was cooler, allowing volatile gases like hydrogen and helium to condense and accumulate. The enormous gravitational forces of these planets then captured and retained these gases, preventing them from escaping into space.


What keeps gases from escaping into outer space?

The Earth's atmosphere is held in place by its gravity. Gravity pulls gas molecules towards the surface of the planet, preventing them from escaping into outer space. Additionally, the Earth's magnetic field also plays a role in protecting the atmosphere by deflecting solar wind and preventing it from stripping away the gases.


Are the outer planets made of gases?

YES


Are the inner and outer planets different?

The inner planets are all rocky planets. The outer planets are completely made up of gases. The inner planets are much smaller than the outer planets.


Could you land on the outer planets?

No. The outer planets do not have solid surfaces. Those planets are made of gases held together by gravity.


How do the inner planets diffrer from the outer planets?

the inner planets made up of rocks while the outer planets are made up of gases and liquids.


What is a characteristic of all outer planets?

The outer plants are made out of gases mostly.


What force keeps the outer planets together?

Gravity and inertia.


What outer planets don't have gases?

They are all made of gas


The outer planets are made of what two gases?

Helium and hydrogen =|


Which planets was formed from the light gases of the outer nebula?

Uranus