how might the sun be affected if Andromeda galaxy and Milky way galaxy collided?

Question

andremeda galaxy is moveing toward milky way with a velocity of about 70 km/s. what would happen to the sun if these two galaxies collide?

Answer 1

1. This is a likely event, far in the future.
2. The Sun's life will end long before then.
3. You will not be here either.

Answer 2

Nothing would happen in time scales that humans would notice. Galaxies are such diffuse objects the consequences for people on the planets of colliding galaxies are nil.

The sun's orbit around the galactic center would be altered, and it might be put on a path that eventually takes it out of the galaxy and into intergalactic space.

I think current theories are that colliding galaxies experience a burst of star formation as the major nebular regions pass through each other. This may have some long-term consequences for habitable worlds close to the major nebulae (I think they might get irradiated).

Answer 3

Galaxies collide all the time - we see it out in space often. They often 'mess up' the galaxies by ripping them apart through gravitational forces - but the funny thing is, stars don't collide. The stars in galaxies are so far apart that even when galaxies collide, the chances of two stars colliding are like the chances of you standing in Boston and your friend standing in New York City and you're trying to find each other by running around and waving your arms. It's not going to happen. So the Sun will be pulled out of it's orbit around the galaxy, sure, but probably nothing spectacular will happen to our solar system.

Answer 4

This question was discussed in the New Scientist a couple of weeks ago !

The chances of stella collisions (The sun hitting another star) are extremely remote but the chance of our part of the Milky Way being flung away from the galactic center is possible, although not the most probable result.

I forget the exact probabilities (although whether your would believe they could compute them with any accuracy anyway) but I seem to remember reading that the most likely thing to happen is that the two galaxies will combine and our sun will continue to exist but slightly further out !

Answer 5

In the UK, Galaxy and Milky Way are both chocolate bars. If they collide you could end up with a Snickers!

Answer 6

If these galaxies collided there is a good possibility that no objects would actually collide, the whole thing is mostly empty space.

Answer 7

Who can know that? Many Galaxies are colliding in the universe right now with different effects. Some are passing through each other with minimal effect while others are being torn apart and flung away from each other and ranges from everything in between.

Answer 8

I think that at the present there are 2 Galaxy's colliding but I can not recall the name.

Answer 9

Its not really very sensible question because the sun is a very tiny part of a galaxy. Its like saying what would happen to one grain of sand in one bag of sand, when two bags of sand collide.

What would happen is that our nice spiral galaxies would become much messier.

Answer 10

when 2 galaxies collide, the mess is huge, because there are a lot of stars, and if they sun manages to dodge one of them, thegravity will make the dirty job, and it will be like two trucks filled with eggs crashing at 100000000 miles per hour or some thing, the trucks end messed up but you might be able to say those where two trucks, but the eggs will be gone for good