Galaxy Collisions: Simulation vs Observations

poor septillions of life forms dieing =(

You're stupid?

no one died in that collision?

Assuming there is any life in the galaxy (who knows?) yes it definitely all would of died during the collision, but not because of the collision. The individual star systems within the galaxies are actually very far apart and when two galaxies merge, although their might be some collisions, they aren't commonplace. As for the life forms dieing, this happens over the course of millions of years, meaning on the time scale of our lives, we would likely not notice much change.

so the answers yes i'm right your stupid

Very nice animation!

Awesome. But... for these galaxies to all be such a close match for different stages in the simulation, wouldn't all of those galaxies from the photo's needed to have collided in a very similar way? Kind of odd that they'd all be roughly the same velocities and relative angles. Odd.

Not quite - there are only half a dozen examples shown, and there are countless billions of galaxies to choose from. It also keeps rotating the simulation to fit the examples, since we can only see them from 1 angle. And some of them are pretty rough matches.

Sure there appears to be billions out there, but I didn't realise there were so many nice quality galaxy collision pictures to choose from.  I stand corrected.

Its true that they don't literally "collide", but the fuse due to gravity that allows every stars of each galaxies to interact with each others. But after all, nothing really "collides" in our world either, atoms just get really close to each others and never really touch when you smack something. I think this is as much of a collision as two bullets hitting one another