NOVA.

NOVA

Polar Extremes

Paleontologist Kirk Johnson explores the polar extremes of the planet, including miles-high ice sheets and warm polar forests brimming with life. (60 minutes)

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UPCOMING EPISODES

Thu, 2/22 at 3:00 am on Austin PBS HDTV

Hunt for the Oldest DNA

Scientists discover the oldest DNA ever found and reveal the genes of long-extinct creatures that once thrived in the Arctic. (60 minutes)

Sun, 2/25 at 3:00 am on Austin PBS HDTV

Hunt for the Oldest DNA

Scientists discover the oldest DNA ever found and reveal the genes of long-extinct creatures that once thrived in the Arctic. (60 minutes)

Tue, 2/27 at 6:00 pm on Austin PBS WORLD

Hunt for the Oldest DNA

Scientists discover the oldest DNA ever found and reveal the genes of long-extinct creatures that once thrived in the Arctic. (60 minutes)

Tue, 2/27 at 7:00 pm on Austin PBS WORLD

Forgotten Genius

The grandson of Alabama slaves, Percy Julian became an industrialist, self-made millionaire, humanitarian and civil rights pioneer. (120 minutes)

Tue, 2/27 at 11:00 pm on Austin PBS WORLD

Hunt for the Oldest DNA

Scientists discover the oldest DNA ever found and reveal the genes of long-extinct creatures that once thrived in the Arctic. (60 minutes)

Wed, 2/28 at 12:00 am on Austin PBS WORLD

Forgotten Genius

The grandson of Alabama slaves, Percy Julian became an industrialist, self-made millionaire, humanitarian and civil rights pioneer. (120 minutes)

Wed, 2/28 at 7:00 am on Austin PBS WORLD

Hunt for the Oldest DNA

Scientists discover the oldest DNA ever found and reveal the genes of long-extinct creatures that once thrived in the Arctic. (60 minutes)

Wed, 2/28 at 8:00 am on Austin PBS WORLD

Forgotten Genius

The grandson of Alabama slaves, Percy Julian became an industrialist, self-made millionaire, humanitarian and civil rights pioneer. (120 minutes)

Wed, 2/28 at 4:00 pm on Austin PBS HDTV

Hunt for the Oldest DNA

Scientists discover the oldest DNA ever found and reveal the genes of long-extinct creatures that once thrived in the Arctic. (60 minutes)