In 19th-century France, the young chemist challenged the theory of spontaneous generation and discovered an invisible world of airborne microbes. Credit...Antoine Maillard Supported by By Carl Zimmer ...
100 years ago, this unlikely duo discovered the first cancer ‘germ.’ By Bill Gourgey Published Oct 4, 2025 12:00 PM EDT Image: Popular Science Composite Get the Popular Science daily newsletter💡 ...
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