This geologist is Earth's planetary protection officer
![](https://www.popsci.com/sites/popsci.com/files/styles/1000_16x9/public/images/2019/04/psc-lisa-pratt-1500x1125.jpg?itok=BYi4dnPi&fc=50,50)
![Lisa Pratt portrait](https://www.popsci.com/sites/popsci.com/files/styles/1000_16x9/public/images/2019/04/psc-lisa-pratt-1500x1125.jpg?itok=BYi4dnPi&fc=50,50)
Guardian of the galaxy.
Lisa Pratt was nearly 2 miles below ground in a South African gold mine when the lights went off and the air stopped moving.
via Popular Science "http://bit.ly/2PF2zqy"
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