INTERACTIVE
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Searching for life
I believe that the search for life on the Red Planet is destined for disillusionment if we do find it. Surely, because of the flow of meteoric material between Earth and Mars, any life on Mars is (or was) likely to share an origin with life on Earth, and be DNA-based. In essence, therefore, the discovery of life on Mars will not answer the question, ‘Are we alone?’ If we are to find an independent evolution of life, it will have to be in an environment isolated from asteroid and meteorite impacts, like the ocean moons of Jupiter and
