Are there places in the solar system where there are "pleasant" temperatures? Or are all places either a bazillion in the sun and minus a bajillion in the shade?
I understand that "she" is our maternal common ancestor. But why do we place her at 150,000 years ago? What about HER mother? Or greatgreatgreat...grand mother?
What is it that makes 150,000 years the cut off for mtDNA and not, say a million years?
jayhovian t1_jasb43z wrote
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Are there places in the solar system where there are "pleasant" temperatures? Or are all places either a bazillion in the sun and minus a bajillion in the shade?