Not generally, but galaxies do collide sometimes. In fact, the Andromeda Galaxy will probably collide with the Milky Way in about 3 billion years or so. In the collision, stars are often "flung" from one galaxy to the other, or thrown out of the original galaxy entirely.
Follow the link below to see what happens when galaxies collide!
Stars and galaxies in the universe are moving away from one another in a manner similar to the way in which raisins in a ball of dough are moving away from one another.
God got bored one day and made them.
The best supporting evidence that the universe is expanding is that galaxies are receding from one another, indicating that the universe is expanding over time. This observation is based on the redshift of galaxies, known as Hubble's Law.
Galaxies/nebulae are at the top of the tree; each one contains several billion stars. Each star might have many planets orbiting around it, and planets can have many moons.
Superclusters are formed through the gravitational attraction of individual galaxies and galaxy clusters over billions of years. As matter in the Universe congregates into denser regions, superclusters emerge as some of the largest structures in the cosmic web. Their formation is influenced by the distribution of dark matter, which acts as the scaffolding for the growth of superclusters.
You can also distinguish them by the types of stars - older stars versus younger stars, and stars of different "metallicity".
one thing galaxy's have planets but not constellations another... constellations look like that the stars are close but the aren't
Stars and galaxies in the universe are moving away from one another in a manner similar to the way in which raisins in a ball of dough are moving away from one another.
God got bored one day and made them.
The force that causes galaxies to move away from one another in the universe is called dark energy.
This is mostly theory, Galaxies are made of billions of stars. For some reason Galaxy's hold on to their stars. We do not really understand how galaxy's can yet hold their form like this. Our math so far has trouble with making sense of this. When comparing one galaxy to another, size becomes so large words are hard to describe the distance of space. There is an an incredible amount of space between everything out there. What is the distance between galaxies, why is it there, The expanding universe is trying to explain the growing spaces between galaxies yet the galaxies appear to stay bound to themselves.
Constellations are patterns of stars that we see in the sky. There are 88 official constellations, like Leo, Orion, Taurus etc. We are in the galaxy called the Milky Way, as are all the stars you can see in all of those constellations. A galaxy is a massive collection of stars. We can see some other galaxies, such as Andromeda, but they just look like a clump of dust in the sky because they are so far away, and we can't pick out individual stars.
Galaxies generally move away from one another.
The number of stars, as in distant "suns", are large. In our solar system, there is one star. In our galaxy, there are many, many stars. In all the visible galaxies, the number is yet larger. And what about all the presumed galaxies beyond our vision?
Galaxies do exert significant gravitational attraction on other galaxies. For example, the Greater and the Lesser Magellanic Clouds are galaxies that orbit our own galaxy, the Milky Way. In that sense, the stars in one galaxy do have a gravitational interaction with those in other galaxies. Of course, the more distant galaxies have correspondingly less gravitational interaction with ours.
No. The sun is just one of hundreds of billions of stars in the Milk Way galaxy.
For the most part, we can't see individual stars in other galaxies (with one notable exception), so obviously detecting planets is out of the question. (The exception is supernovae, stars that are in the process of exploding.)