View Single Post
Nabeshin
#21
Feb8-09, 01:04 AM
Sci Advisor
Nabeshin's Avatar
P: 2,193
Quote Quote by v2kkim View Post
http://www.haydenplanetarium.org/res.../S0606neutcoll
http://www.universetoday.com/2004/04...tar-formation/
I found 2 web sites. The first is a simulation of the star collision. I know to see is to believe but stars are too far away so I am not sure we can see collision details at all.
The second one is the actual photo but of galaxy collision, where we see the attacked galaxy forms a ring and and generating many young stars.
That simulation is pretty cool, v2kkim, thanks for that!

Also, I only say almost never because it is technically possible for them to collide (of course) but has never been observed and likely never will be. The nature of star formation and galactic motion, not to mention the vastness of space between stars. Here's an example to illustrate how rare the event would be:

A typical star such as our sun has a radius of about 10^9 meters. The distance to the nearest stars is on the order of 5 light years, or about 10^16 meters. Imagine the sun to be a pea (radius of roughly .01m), then the nearest star is 100,000m (100km) away. This gives you an idea of the absolute improbability of two peas 100km away from each other colliding.