I found a very interesting utility on the Internet that simulates galaxy collisions on your PC: http://loke.as.arizona.edu/~ckulesa/astrosoft.html

Here are my initial settings:

0 0 100
0 0 0
5 5
1
QuickDraw and Reverse checked, number of iterations set to 9999.

The result are the two galaxies colliding top-down and bottom-up, with both being totally destroyed in a highly cataclysmic dual cone expansion pattern!

Play with it for a while - you'll get hooked!

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I am Mugs, of the Alien clan of Usa, Nordamerica, a Terran, of Sol.

Perception isn't reality. It's merely an abstraction thereof, and quite often not a very good one at that.

I am human. Fully human.

Here's another - I was able to get one galaxy to remain relatively unscathed, while the other was taken completely out of its own orbital plane and is now in a fairly toroidal pattern orbiting the center of the other galaxy, but doing so about 90 degrees from the plane of the ecliptic!

0, 0, 100
.1, 0, 0
.02, 10
5

__________________
I am Mugs, of the Alien clan of Usa, Nordamerica, a Terran, of Sol.

Perception isn't reality. It's merely an abstraction thereof, and quite often not a very good one at that.

I am human. Fully human.

When Galaxies Square Dance!

100, 100, 100
.05, 0, 0
1, 2
.5

Quick draw and reverse rotation "on".

I ran it @ 20,000 iterations.

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"It was a crime of passion! Not premeditated dentistry!"

That is pretty friggin cool. Thanks.

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"I may make you feel but I can't make you think"

The Gravity and Planetary Orbits program is actually quite useful. Science and fun, does it get any better than that?

__________________
"I may make you feel but I can't make you think"