I'm trying to remember the name and author of a science fiction short story I read about 15 years ago in an anthology book.
The story involved a scientific experiment on a spaceship/space station in orbit in the solar system. The experiment consisted of a quickly evolving ecosystem that reproduced evolution. Eventually, the person realizes there is something dangerous going on (don't remember the specifics) and decides to crash the experiment into the sun, if I recall correctly. But as they were passing earth, the experiment "evolves" some sort of spore that gets released from the ship into earth's atmosphere.