NOVA
Why Are There Stone Tree Trunks in the Arctic?
Fifty-million years ago these rocks were trees and this Arctic tundra was a steamy swap.
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Ultimate Crash Test: Impact
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
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Ultimate Crash Test: Countdown
A first-of-its-kind experiment aims to stage a multi-vehicle pileup to gain new data on car safety.
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When Machines Prescribe
Investigate medical algorithms in which the patient’s race drives decisions.
NOVA
Critical Condition: Health in Black America Preview
After centuries of pseudoscience, researchers examine the causes of racial health disparities.