Short Sharp Science: How Earthly life could populate space by panspermia – http://www.newscientist.com/blogs/shortsharpscience/2012/04/reverse-panspermia.html
Short Sharp Science: How Earthly life could populate space by panspermia – http://www.newscientist.com/blogs/shortsharpscience/2012/04/reverse-panspermia.html