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3 types of galaxies= spiral, elliptical, and irregular. Spiral and irregular are split into further categories

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When two spiral galaxies collide a elliptical galaxy is formed

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Galaxies are stars and dust clouds held together by mutual gravity that orbit around a common center.

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Large galaxies absorb smaller galaxies

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There are 3 main types of galaxies:

Elliptical galaxies are measured on their ellipticity ranging from E0 (very circular) to E7 (not so circular)

Spiral galaxies have 3 main parts: bulge, disk, halo. They are also classified into 2 groups: Ordinary (SA) and barred (SB)

Irregular galaxies have no regular or symmetrical structure.

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- galaxies collide and form a new galaxy, (Andromeda and milky way) 2 spirals collide to make elliptical

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The milky way is a spiral galaxy and our sun is located in the “arm” of the spiral! I assumed it was right in the middle.

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-Collisions between planets and stars is quite unlikely
-Large galaxies absorb smaller galaxies

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when galaxies collide, larger galaxies absorb smaller galaxies

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There are three types of galaxies.
Elliptical- a large circle
Spiral- have a bulge, disk, halo (either ordinary or barred)
Irregular- no symmetrical structure

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There are 3 types of galaxies- we live in a spiral galaxy, the Milky Way

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-Two galaxies collide in red and green in the simulation but actually galaxies are unlikely to collide, larger galaxies absorb smaller galaxies in a "collison" and all the stars form a giant elliptical galaxy, with no real structure.