Seeding of Life on Moons of the Outer Planets

Details Seeding of Life on Moons of the Outer Planets Seeding of Life on Moons of the Outer Planets

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.4204w&link_type=abstract

American Astronomical Society, ESS meeting #2, #42.04

Mathematics

Probability

Scientific paper

We explore the possibility that life on the potentially habitable moons in the outer Solar System could have been seeded by transfer of meteorite ejecta from Earth or Mars. It has been shown that bacterial spores can remain viable for some time in the vacuum of space, and it is hypothesized that if embedded in rock, they may survive long enough to reach other parts of the Solar System through orbital perturbations. We use numerical N-body simulations to study the ejection of low mass bodies from the inner planets. We follow the orbits of the ejecta for long times to determine the probability that they may arrive at, and impact, the outer moons most interesting from a habitability standpoint, such as Europa.

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