[jpsb]

I read a while back that some call them extinction stars since they would kill all life in the path of their gamma ray bursts up to about 1000 light years away. Not a very good stellar neighbor.

[techcor]

I read that too somewhere. What's really odd is to do a search on google for "strange matter" and "earth" and there is some evidence that a 10 ton piece of strange matter about the size of a cell passed through the earth. Strange matter is thought to have some strange qualities.