Q&A 126: When Did Mars' Dynamo Shut Off? And More...
In this week's questions show, I consider what the benefits might be to humanity if we discover that we aren't alone in the Universe. How long did Mars planetary dynamo take to turn off? Could we find and repair the lunar rovers?
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Comments (1)
Hi, Fraser. I think you missed an important point re why search for other life in the Universe. Life on Earth is *one sample*. Science needs more than one in order to test its theories. Earth science is advancing rapidly due to our growing detailed knowledge of the worlds in the Solar system plus our discovery of many *weird* worlds around other suns. Discovering any kind of life elsewhere would help folks begin to answer question such as whether life is inevitable given the right conditions (oh, and what are the right conditions?), is DNA/RNA the only way life can work, is A, T, G, C genetic code the only one that works, etc. etc.