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Also in this episode:

Catalyst: Drone search and rescue

Catalyst: Tuberculosis

Catalyst: External suit during rehabilitation

In this segment:

Chris Gisriel, Ph.D.,
Petra Fromme

Catalyst: Drone search and rescue
Catalyst: NASA satellite images of our solar system

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PBS KIDS Family Night: 'Molly of Denali' mini-marathon

This week's feature is a "Molly of Denali" mini-marathon. Join Molly, an Alaska Native girl, her dog Suki, and friends Tooey and Trini on their adventures in beautiful Alaska.