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Scientists have found a gas associated with living organisms in a region of Venus' atmosphere. They can't figure out how it got there if it didn't come from life.
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Some unusual meteorites suggest that Earth got its water at its start, rather than forming dry and being watered by comets later on.
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John Weeks talks about his hometown of Albion, NY. He reflects on what it was like when he lived there and how it has changed from what he remembers. He…