Microbiologist Thomas Brock Dies at 94

Brock’s discovery of a thermophile bacteria at Yellowstone National Park in 1966 eventually enabled the development of PCR.

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Dr. Brock standing in nature, smiling for the camera and wearing binoculars around his neck

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CREDIT: BRYCE RICHTER

Microbiologist Thomas Brock, whose bacterial discovery led to the creation of a transformative technique for molecular biology, died on April 4 at the age of 94. Brock’s wife Katherine tells The New York Times that the cause of death was complications after a fall.

Born in 1926, Brock grew up in Ohio near Lake Erie and developed a love of the natural world early on. His parents supported his scientific curiosity, and after spending a year in the US Navy during World War II, he attended the Ohio State University for a bachelor’s in botany, then earned a master’s and PhD in mycology, also at Ohio State.

After working for a few years in industry, Brock accepted a teaching position at Indiana University in 1960. In 1964, his field studies took him to Yellowstone National Park, where he was immediately drawn to the microbes living in the ...

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Meet the Author

  • Lisa Winter

    Lisa Winter became social media editor for The Scientist in 2017. In addition to her duties on social media platforms, she also pens obituaries for the website. She graduated from Arizona State University, where she studied genetics, cell, and developmental biology.
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