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Astronauts on the International Space Station just got pizza delivered to them
07 December 2017, 07:57 | Israel Caldwell
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Judging by a pizza slowly floating by a camera on the International Space Station, it looks like somebody prefers extra pepperoni on their weightless pie. "So it is probably no more or less gross than your living room".
The International Space teems with more than 12,000 different species of bacteria - and that's a good thing. "As to the first, we are completely surrounded by mostly harmless microbes on Earth, and we see a broadly similar microbial community on the ISS".
Scientists have also found bacteria inside the space station, although these appear to have come from Earth.
The team analyzed bacteria found on 15 locations on the ISS, as well as swabs from astronauts, and compared them to samples from the Human Microbiome Project and homes on Earth. For that study, people around the United States were asked to send in samples of the bacteria found in their homes, and they were then sent up to the International Space Station - the new research reverses that, bringing samples back down from space and exploring them. That's interesting because the space environment is very controlled; only a handful of astronauts visit a year.
It's well known that we humans carry a rich ecology with us - there are billions of microbes swarming all over you right this second - but the way microbes are transferred into the places we live and work is proving a rich area of study. The only other influx of microbes happens when astronauts unload a visiting spaceship, such as a SpaceX Dragon.
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