You know, just in case we ever get around to spending this unbelievably grand sum of money to pointlessly send a few families on a ten to twenty year fool's journey to a pointlessly incompatible star system a whopping several light years away. Iron rain showers in space! Well shiver me timbers.

I mean, after about 50,000 years or so, they start becoming fairly diffuse, right?

Edited April 3, 201114 yr by Realitycheck

They would not tend to be bound together after being that hot.

You're only concerned about iron? There are all kinds of particles, from tiny to giant boulders flying around out there at tens of miles per second. The good news is most of that stuff is inside our solar system. The bad news is we have no idea what you might run into while cruising at high speed towards another star system.

 

How quickly can your starship dodge a bullet?

Edited April 4, 201114 yr by Airbrush

Of course, maybe dark matter doesn't exist in another dimension, either.

I ran across this current article today on Discovery which just happens to expound on this topic.

 

http://news.discovery.com/space/project-icarus-fusion-propulsion-starship-110405.html

In the news today, iron micrometeorites, but they are claiming that they came from other sources, asteroids and so forth.

 

 

http://www.wired.com/wiredscience/2011/05/oldest-fossil-micrometeorites/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+wired%2Findex+%28Wired%3A+Index+3+%28Top+Stories+2%29%29&utm_content=Google+Feedfetcher