Milky manner is due for a giant collision with Andromeda galaxy: scientists – Gizbot
Will this have an effect on our photo voltaic system as properly?
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A brand new research has revealed that Milky Manner will collide with Andromeda, however it would possibly take a bit longer. Based mostly on the observations by ESA’s Gaia probe, the collision will take one other 4.5 billion years to happen.
Earlier predictions recommended that the galaxies will collide in 3.9 billion years. Now, evaluation of knowledge gathered by the Gaia spacecraft has given new insights on the anticipated collision time.
Within the new research printed in The Astrophysical Journal, astronomers traced stars within the Milky Manner, Andromeda, and the Spiral Triangulum. They discovered that the 2 neighbor galaxies are about 2.Three to three million mild years away from the Milky Manner and are shut sufficient to work together with one another.
The scientists have been in a position to monitor the rotation of Andromeda and Spiral Triangulum and decide how these each galaxies have been transferring previously and the way they’re likey to maneuver within the subsequent billion years. This led them to consider that the collision will happen in 4.5 billion years and might be a sideswipe as an alternative of a head-on collision. Properly, this may not have an effect on our photo voltaic system due to the massive distance between the celebrities.
Messier 31, extra generally often known as the Andromeda Galaxy, is the closest galaxy to the Milky Manner. It may also be seen with the bare eye even with average air pollution. Since it is so seen, it is onerous to say who found the galaxy.
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Story first printed: Monday, February 11, 2019, 13:21 [IST]