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That’s important. Bacteria exposed to air develop differently from bacteria that have not been exposed to outside air. The inside of the colon is pretty much air-free.

The stool has also been kept frozen, which means it has no exposure to any antibiotic resistance that may have developed and spread in bacteria since 1994. A company called Achim Biotherapeutics makes the fecal transplant product used for the study.

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NASA has achieved a first for the class of tiny spacecraft known as CubeSats, which are opening new access to space.

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