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Galaxies are flat because of the way gravity and angular momentum interact during their formation. As gas and dust collapse to form a galaxy, the rotation causes it to flatten out into a disk shape. This rotation helps balance the inward pull of gravity, resulting in a flat, disk-like structure.

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4mo ago

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What are similarities between elliptical and spiral galaxies?

While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren't nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born


Do galaxies all have the same shape?

Galaxies may have any of four general shapes. Elliptical galaxies show little or no structure and vary in general shape from moderately flat and round or oval to spherical. Spiral galaxies have a small, bright central region, or nucleus, and arms that come out of the nucleus and wind around, trailing off like a giant pinwheel. In barred spiral galaxies, the arms extend sideways in a short straight line before turning off into the spiral shape. Both kinds of spiral systems are flat. Irregular galaxies are usually rather small and do not have a symmetrical shape.


If scientists have ony seen a galaxy like as a flat object on the side or whatever how can they make predictions and drawings of galaxies if they have never seen them?

they don't see it flat they actually go out into the space and look at the galaxies, milky ways and more in the solar system.


What evidence can you cite that the universe is flat How does that compare to previous beliefs about the universe?

The universe isn't flat. It is 3-Dimensional time and space. Galaxies are depicted as being donut shaped and flat


Is are galaxy flat?

No, galaxies are three dimensional. Do you mean are there galaxies without a bulge in the center? That answer is yes. Some are shaped like balls, some have irregular shapes, and the rest (which is really most of them) are shaped like discs. Almost all disc-shaped galaxies have a bulge in them, but there are a few that do not have any bulge at all- they are flat discs. Just like a CD.


Three quarters of all known galaxies are what galaxies?

That is a difficult question to fully answer as types of galaxies are not fully defined. A ball park figure would be dwarf galaxies, or spiral galaxies depending on the area in question. See related question for a full breakdown.


What are three types of galaxys?

The three different types of galaxies are the Spiral galaxy, the Elliptical galaxy, and the Irregular galaxy. Spiral galaxies are obviously in the shape of a spiral, elliptical galaxies are shaped as an ellipse, or a flat circle, and irregular galaxies can be any shape.


How are the shapes of the milky way and the Andromeda galaxy related?

Both the Milky Way and the Andromeda galaxies are flat spirals in shape.


What are the 3 common galaxies?

galaxie 1, 2, 3, 4 and 5


How are the shapes of the Milky Way Galaxy and the Andromeda Galaxy related?

Both the Milky Way and the Andromeda galaxies are flat spirals in shape.


How do you know your galaxy is a flat disk?

We don't for sure as our vantage point does not allow us to determine that. However, by viewing other spiral galaxies (Andromeda, Sombrero galaxies) we can make a calculated guess that our galaxy is shaped in the same way.Also, while we can't see the galaxy as a whole, what we can see is consistent with it being a flat disk... specifically, we can even tell that it appears to be a barred spiral galaxy.


Who found the galaxies?

who discovered the galaxies who discovered the galaxies