As calculated by NASA space agency, the Milky Way, including our earth, is gradually merge and collide with Andromeda Galaxy in four billion years. Based on the data of the Hubble Space Telescope this merger process will take another two billion years time.
However currently, the Andromeda Galaxy is still at a distance of 2.5 million light years.
Earth and the Andromeda Galaxy reaching towards each other about 400,000 kilometers per hour. Using the “Hubble” telescope, scientists figure out sideways motion of the Andromeda galaxy, which used to calculate the process of the collision.
“Our observations are statistically consistent with a head-on collision between the Andromeda galaxy and the Milky Way.” explained STScI team leader Roeland van der Marel.
Researchers explained, after the collision, the two spiral galaxies will merge to form a new large elliptical galaxy, called Milkomeda or Milkdromeda.
Our planets in the solar system, would thereby probably catapulted to a completely different place in the merged galaxy, but not destroyed.
Colliding galaxies fly each other rather direct collisions. However earth and the sun will not be like as it is right now. In about five billion years our sun will become a so-called red giant due to the fact that it slowly runs out of nuclear fuel for the fusion reactions in the core. Then Mercury, Venus and Earth, and Mars probably be roast.