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Because stars make up galaxies. Though not all of them help make up solar systems. But if there are no stars, then a galaxy becomes a bunch of empty space.

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Are there any stars between Galaxies?

Yes, there are stars between galaxies. When there are collisions or interactions between galaxies, stars can be ripped out of the galaxies. These stars will then wander into space between galaxies. Such stars have been observed with the Hubble Space Telescope. Taken from http://curious.astro.cornell.edu/question.php?number=384


What are three sizes for galaxies?

Galaxies can be classified into three main sizes: dwarf galaxies, which are small and contain less than a few billion stars; Milky Way-sized galaxies, which are intermediate in size and contain a few hundred billion stars; and giant galaxies, which are massive and can contain trillions of stars.


What galaxies are massive blobs of stars?

Elliptical galaxies are massive blobs of stars characterized by their round or ellipsoidal shapes. These galaxies are composed mainly of older stars and have little to no ongoing star formation activity.


What determines the shape of a galaxy?

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.


What kind of galexies are there?

There are generally three types of galaxies: spiral galaxies, elliptical galaxies, and irregular galaxies. Spiral galaxies like the Milky Way have a disk shape with arms of stars spiraling out from a central core. Elliptical galaxies are shaped like ellipses and contain mostly older stars. Irregular galaxies have a less defined shape and tend to have a mix of young and old stars.

Related Questions

Which stars are actually a galaxy?

No stars are actually a galaxy. All stars are stars and all galaxies are galaxies. Stars are found in galaxies. Some galaxies look like tiny dots in our night sky, so might look like a star, but they are not stars; they are galaxies.


What are all stars and galaxies in?

All stars and galaxies are in the universe.


Are there any stars between Galaxies?

Yes, there are stars between galaxies. When there are collisions or interactions between galaxies, stars can be ripped out of the galaxies. These stars will then wander into space between galaxies. Such stars have been observed with the Hubble Space Telescope. Taken from http://curious.astro.cornell.edu/question.php?number=384


Do Galaxies contain millions of stars?

Smaller galaxies do. Larger galaxies contain billions or even trillions of stars.


Which objects began to form in your universe earlier stars or galaxies?

Galaxies are the massive collection of stars. Therefore galaxies could not have formed without stars.


How are galaxies and stars related?

Stars and Galaxies are related because a galaxy is a system of billions of stars, gases, and dust.


When galaxies collided they form?

Bigger galaxies. And stars.


Can galaxies be formed by groups of stars?

Galaxies ARE groups of stars. Lots of stars though. Not just like 2 or 3...


Where are the stars and the galaxies?

the stars are in the night skies


Do stars form into galaxies?

Galaxies are vast collections of stars. So I guess you could say that a big group of stars forms a galaxy. Our galaxy has many big clusters of stars within it, so not all star clusters are galaxies. If you have a cluster of several million or billion (or trillion) stars surrounded by a lot of empty space, that is probably a galaxy.


Why are the stars found in galaxies?

Because that is what galaxies are "made" up of.


What has all the stars and galaxies in them?

the universe is made up of galaxies