NASA warns that the Milky Way will collide with the Andromeda Galaxy (Video)
It has long been suspected the possibility of a cosmic collision between our galaxy and the neighboring Andromeda in the future. NASA now says he is able to “predict with certainty” that this will occur in about 4,000 million years.
“The Milky Way is destined for a major refurbishment during the meeting,” the agency said, noting that “it is likely that the Sun is released in another region of our galaxy, but the Earth and solar system are not in danger of being destroyed “.
The prediction was made possible with the Hubble measurements taken on the motion of Andromeda. The galaxy is 2.5 million light years away now, but “falling” toward the Milky Way because of the mutual forces of gravity and dark matter that surrounds them.
With computer simulations derived from the Hubble data, shows that it will take additional 2,000 million years to complete the merger between two galaxies, under the force of gravity, and reformed into a single elliptical galaxy as those usually seen in the universe.
Although the two galaxies collide, the stars within each one are so far away that is unlikely to collide with each other, NASA said. However, the stars will be launched into different orbits in the new order. According to the simulation, our solar system would end up much farther from the center of the galaxy than it is now.
To complicate matters a bit more, the Triangle galaxy, Andromeda accompanying probably also be merged shortly thereafter.
The collision process would look something like this from Earth:Andromeda, galaxy, Hubble, Milky Way, NASA, shock, Space