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00:30:00
In today's program, Exploratorium scientists Paul Doherty and Karen Kalumuck will look at examples of life in extreme environments on Earth. As Mars is an extreme environment, the question remains-could it have supported any form of microbial life?

00:00:46
The Geyser Valley is a "candy shop" for microbiologists and geochemists.

00:01:15
Bears lumber across a pristine landscape in remote Kamchatka, Russia.

00:00:25
Discovered just 60 years ago, this remote valley in Russia is a treasure trove for scientists studying microorganisms that survive under extreme conditions.

00:01:25
Tour the lab tent where scientists study the unique microbiology and geochemistry of the hot springs of Russia's Uzon Caldera.