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Panspermia: Could life be delivered to a planet?
April 30, 2021 at 10:30 am
Panspermia is the theory that life could be delivered to Earth or any other planet by being carried through space by meteorites, comets or asteroids.
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Panspermia addresses the way that life could be distributed across the Galaxy, not how life actually began.
Exobiologists have traditionally focussed on the possibility of life on Mars and within the subsurface oceans of the icy moons Europa and Enceladus, but could simple life forms such as bacteria and extremeophiles be – as panspermia proposes – much more widespread? Could there be life hidden beneath the icy crust of Jupiter’s moon Europa? Credit: NASA/JPL-Caltech/SETI Institut