Related news: Interstellar 'slowball' could have carried seeds of life

[MangoCats]

What the article doesn't say is how long it would take such a "life
rock" to travel interstellar distances, or, why it is more likely that
the star formation cluster would have such compounds in it as compared
to another star system.

I think it was Douglas Adams who said "Space is big. Really big."
Even the planet Earth is an incomprehensibly large pool of chemicals.
The formation of an improbably complex set of chemicals that self-
replicate becomes not only possible, but almost inevitable when you
have conducive conditions for them to replicate in stable for billions
of years in 1.4x10^21 kilograms of water.

http://space.newscientist.com/article/mg19926725.400-interstellar-slowball-could-have-carried-seeds-of-life.html?feedId=online-news_rss20