According to a new study in the journal PeerJ, the interior surfaces of the 17-year-old, 250-mile-high, airtight International Space Station harbor at least 1,000 and perhaps more than 4,000 microbe species. Jeff and Anthony discuss germs in space, and the very real society of Cheerleader Scientists.

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Today’s story was submitted by toonreborn: https://www.washingtonpost.com/amphtml/news/speaking-of-science/wp/2017/12/05/the-international-space-station-is-super-germy/

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