Milky Way - the history of collisions with other galaxies

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universe in which we live is constantly changing, moving, and every day brings new discoveries.For example, scientists have found that a relatively "recently" in cosmic standards, our Milky Way galaxy swallowed a small companion galaxy.

black hole is located in the center of our galaxy, he faced with a similar black hole, which was the nucleus of another galaxy.It happened 2 million. Years ago and caused "superfeyerverk" by which is now at the center of the Milky Way are continuing active star formation processes.

There astronomers discovered three massive clusters with hundreds of young stars, old stars in this region is almost no.This is confirmed by the Fermi Bubbles, is the intensity of emission of high-energy particles.They extend to 290 thousand light years, spreading outward from the center of the disk of the Milky Way.

Scientists suggest that the Milky Way galaxy 13 billion. Years ago, beginning to approach and absorb small satellite galaxies.Black hole - the core of the galaxy, the mass of which is equal to about 10 thousand suns, it flew into interstellar space, while 10 million. Years ago collided with our larger black hole that led to a mass death of the old and the formation of new stars.

But it is not the only global cataclysm.According to calculations, the Milky Way expect another massive collision.At this time, we become closer to Andromeda.The process of the merger is expected in four billion. Years, and in two we will be a bright galaxy.Then the night sky seen from Earth, will be a truly spectacular sight, unless, of course, who will enjoy them.

first time, astronomers were able to see the Andromeda Galaxy about 1 thousand. Years ago, and now the galaxy is viewed as a small fuzzy object.But once this place, which is now not at all impressive of its kind, able to absorb the sun and Earth.

The fact that these two galaxies are moving towards each other, have found out long ago.Until recently, trying to understand whether the Andromeda held by or it flies directly towards us.Using the advanced capabilities of the telescope Hubble, scientists have modeled the future processes and calculate the current speed of the galaxies.Computer visualization clearly showed how the Milky Way and Andromeda in time unite to form a single bright elliptical galaxy.

clashes with the star should not happen, because the distances between them are enormous.However, scientists believe that the location of the solar system in the process of irreversible change.What effect will this have on the earth - it is not yet clear.

The merger process will be involved as a small satellite galaxy Andromeda galaxy called Triangulum.

Recall that now the Milky Way looks like an elongated disc diameter of about 100,000 lights.years, and a thickness of about 1,000 lights.years.There in our galaxy from 250 to 400 billion stars.

In the center of a rotating disk, in the constellation Sagittarius, located thickening - the core of the galaxy.It is, on assumptions, is a huge black hole, around which several thousand others, with respect to medium-sized black holes.

solar system is located closer to the edge of our galaxy, so there is a distance between the stars is thousands of times greater than in the central part.The Sun, like other stars revolve around the galactic center.One revolution takes place 200 million years.It turns out that the Earth during its lifetime could fly 30 times our galaxy around.

How did the Milky Way would look like after the merger with Andromeda, how to change the rules and the laws of physics?It is an open question, reliable response to that we did not know.