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There seems to be a distinct danger that we shall never find out about Mars life as we shan't be allowed to go because we might contaminate Mars, so threatening putative Mars organisms with Earth organisms.
This view ignores the exchange of meteorites between the two bodies over the past three and a half billion years or so.
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BITD, that view was only held by extreme "Ecofreaks." It's now become a bit more popular, but remains irrational.
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My first post here, interesting threads.
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Are earthlings alone in the universe? JPL’s new director wants to find out
https://www.kcrw.com/news/shows/greater … osity-mars
Scientists propose Ceres sample return mission
https://www.spaceflightinsider.com/miss … n-mission/
Panspermia is the hypothesis, first proposed in the 5th century BC by the Greek philosopher Anaxagoras, that life exists throughout the Universe, distributed by space dust, meteoroids, asteroids, comets, and planetoids, as well as by spacecraft carrying unintended contamination by microorganisms.
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