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That is related to their past history. Many galaxies have undergone collisions with other galaxies; this takes out most of the interstellar gas, and the galaxies can no longer form new stars. If I remember correctly, such galaxies will change into elliptical galaxies.

That is related to their past history. Many galaxies have undergone collisions with other galaxies; this takes out most of the interstellar gas, and the galaxies can no longer form new stars. If I remember correctly, such galaxies will change into elliptical galaxies.

That is related to their past history. Many galaxies have undergone collisions with other galaxies; this takes out most of the interstellar gas, and the galaxies can no longer form new stars. If I remember correctly, such galaxies will change into elliptical galaxies.

That is related to their past history. Many galaxies have undergone collisions with other galaxies; this takes out most of the interstellar gas, and the galaxies can no longer form new stars. If I remember correctly, such galaxies will change into elliptical galaxies.

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14y ago
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14y ago

it tells you if it is old, new, what it contains-spiral galaxies have old stars at center, new, bright stars and lots of gas and dust on the arms
elliptical gallaxies have old stars and not lots of dust and gas
irregular galaxies have lots of dust and gas

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14y ago

That is related to their past history. Many galaxies have undergone collisions with other galaxies; this takes out most of the interstellar gas, and the galaxies can no longer form new stars. If I remember correctly, such galaxies will change into elliptical galaxies.

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14y ago

Im pretty sure it indicates which way it spins im not too sure but i know that the redder it gets the farther away it is.

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13y ago

the faster it rotates the flatter it is.

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12y ago

Gravity.

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Q: What determines the shape of a galaxy?
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It depends what shape the galaxy has.


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