can galaxies collide

The collisions are so tame that they are usually just referred to as mergers. Galaxies contain a lot of space and it is more likely that stars will pass by each other.

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As they merge the stars and planets of one get mixed with the stars and planets of the other resulting in a larger galaxy with a different structure to either.

. The galaxies began their slow collision 10-million years ago and have already created regions of intense star formation and may eventually create a supermassive black hole. When two galaxies collide they eventually coalesce to form a single larger galaxy. This is also to do with the fact that galaxies that have collided have a tendency to stick together. The inhomogeneities in the matter distribution are believed to originate from quantum fluctuations that occurred when inflation ended.

As they near each other the galaxies begin to embrace as thin tendrils of gas and stars reaching out through the tenuous medium between them. Anyway its quite natural for galaxies to collide even though the universe is expanding - although I could see why you might get confused about it. The truth is what could happen when galaxies interact largely depends on the composition and size of the galaxies that are colliding. Although they occur over vastly long timescales galaxies.

Galaxies interact with each other due to their mutual gravitation. What happens is that there is a battle between the forces of gravity between the two galaxies which is trying to pull them together and the expansion of the universe which is trying to pull them apart. In fact it is now believed that collisions and mergers between galaxies are one of the main elements that drive their evolution in time. To better understand we will have to look further back into time and our Universe.

If the Big Bang is compared to the explosion of a hand grenade I could understand that given enough time the coalesced shrapnel or galaxies would begin to cross paths and collide with one another due to gravity. Galaxies that had been pulled together before the universe began accelerating still have the chance to collide. Sometimes a small galaxy will collide with the outer part of a larger one and either pass through or merge in either case exchanging a lot of stars along the way. Galaxies collide in different ways.

During the past decade the hypothesis that spiral galaxies can collide and merge to form elliptical galaxies has become increasingly popular. Collectively they form overdense patches of. It is very common for galaxies to collide and interact with other galaxies. By far most of the mass of a galaxy is Dark Matter which feels no.

Its a mutual gravitational attraction. June 4 2011 at 609 am. The word collision is a little dramatic merge would be a far more accurate term. When the galaxies collide it causes vast clouds of hydrogen to collect and become compressed which can trigger a series of gravitational collapses.

Galaxies didnt form on a grid and the force of expansion of our universe is. Because of the huge amount of stuff in a galaxy they have a strong gravitational influence. Fundamentally the fact that we see galaxy collisions comes down to two things. NGC 7252 has been considered the prototypical example of a merger between two disk-shaped galaxies.

Galaxies collide for the same reason that is responsible for their existence which is gravitational forces. Some regions ended up with higher than. Inside clusters and groups galaxies collide all the time. A galaxy is made of roughly 100 billion stars.

Most galaxies probably had interactions with other galaxies since the time they formed. Over large periods of time the two galaxies will gravitationally interact attracted to each other. Two dwarf galaxies orbiting a larger galaxy NGC 1052 collided at a relative line-of-sight speed of 300 kilometres per second approximately 8 billion years ago. The universe is expanding at an ever increasing rate but Arp-302 provides a textbook example of how gravity dominates in local space causing the two galaxies to collide much like the Milky Way.

Most live in groups or clusters with dozens or hundreds of members and these cluster galaxies are all in constant motion pulled and twisted by their neighbors gravity swarming like bees around a honey pot. But galaxies are by no means isolated. The best way you can think about galaxies meeting is by thinking of them as merging instead of colliding. If matter had been exactly evenly distributed after the big bang then galaxies wouldnt collide but there wouldnt be any galaxies anyway.

When the galaxies collide it causes vast clouds of hydrogen to collect and become compressed which can trigger a series of gravitational collapses. Expansionary powers at play For a long time even scientists were confused by the state of the Universe. Planets and stars will not run into each other. These two massive structures.

In such an environment collisions can and do happen and the result is a cosmic firework display. Two galaxies are drawn together by forces they cant see but they can feel.

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