Natural Transfer of Viable Microbes in Space from Planets in the Extra-Solar Systems to a Planet in our Solar System and Vice-Versa · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/0809.0378/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTNatural Transfer of Viable Microbes in Space from Planets in the Extra-Solar Systems to a Planet in our Solar System and Vice-Versa — mentioned by danieltilletthttps://news.ycombinator.com/item?id=12247206urn:hackerpapers:mention:0809.0378:12247206Mon, 08 Aug 2016 12:37:25 GMT<p>We are only 3.7 billion years too late to be worrying about this. Earth rocks containing viable microbes have been landing on Mars for billions of years. I can&#x27;t find a reference, but my memory is the rate is around 100 kg per year. Edit. Found some references [1 - 3]. 1. http://www.ncbi.nlm.nih.gov/pubmed/11543506 2. https://arxiv.org/pdf/1011.0101.pdf 3. https://arxiv.org/pdf/0809.0378.pdf</p><p><a href="https://hackerpaper.kaipfister.de/p/0809.0378/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph