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Study Finds Viruses Rain Down From The Sky03:47
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In this handout photo provided by the European Space Agency (ESA) on July 17, 2014, the Earth reflects light from the sun. (Alexander Gerst/ESA via Getty Images)
In this handout photo provided by the European Space Agency (ESA) on July 17, 2014, the Earth reflects light from the sun. (Alexander Gerst/ESA via Getty Images)
This article is more than 2 years old.

Research shows that viruses that affect microbes are ubiquitous, traveling around the world in the upper atmosphere.

Here & Now's Eric Westervelt (@Ericnpr) learns more from Curtis Suttle, a researcher at the University of British Columbia.

This segment aired on April 25, 2018.

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