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MCCJT20114126 karma

From my fourth grade students (edited by me for clarity):

Could there be Martian life in the water since it's only there at certain times of the year? What might happen to the life when the water disappears?

It was mentioned that there's life on Mars in the form of microbes on the machinery. Is it possible that these microbes sent by us could harm Martian life?

Thank you!