Episode Clips

Milking a Horse is Harder than You Think

To milk a horse, one must trick a mother horse—and trick her well.

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Lost Viking Army

Bioarchaeologists investigate a 9th-century mass grave thought to hold a lost Viking army.

Back to the Moon

Discover why scientists and entrepreneurs alike have their sights set on the Moon again.

The Planets: Mars

Before it was a dry planet, Mars was a wet world that may have hosted life.

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