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

Wed, 7/24 at 8:00 pm on Austin PBS HDTV

Sunken Ship Rescue

Efforts to secure, raise and salvage the Costa Concordia cruise ship which capsized off the Italian coast on Jan. 13, 2012, killing 32 people. (60 minutes)

Thu, 7/25 at 1:00 am on Austin PBS HDTV

Sunken Ship Rescue

Efforts to secure, raise and salvage the Costa Concordia cruise ship which capsized off the Italian coast on Jan. 13, 2012, killing 32 people. (60 minutes)

Sun, 7/28 at 3:00 am on Austin PBS HDTV

Sunken Ship Rescue

Efforts to secure, raise and salvage the Costa Concordia cruise ship which capsized off the Italian coast on Jan. 13, 2012, killing 32 people. (60 minutes)

Sun, 7/28 at 5:00 pm on Austin PBS HDTV

Sunken Ship Rescue

Efforts to secure, raise and salvage the Costa Concordia cruise ship which capsized off the Italian coast on Jan. 13, 2012, killing 32 people. (60 minutes)

Tue, 7/30 at 6:00 pm on Austin PBS WORLD

Sunken Ship Rescue

Efforts to secure, raise and salvage the Costa Concordia cruise ship which capsized off the Italian coast on Jan. 13, 2012, killing 32 people. (60 minutes)

Tue, 7/30 at 11:00 pm on Austin PBS WORLD

Sunken Ship Rescue

Efforts to secure, raise and salvage the Costa Concordia cruise ship which capsized off the Italian coast on Jan. 13, 2012, killing 32 people. (60 minutes)

Wed, 7/31 at 7:00 am on Austin PBS WORLD

Sunken Ship Rescue

Efforts to secure, raise and salvage the Costa Concordia cruise ship which capsized off the Italian coast on Jan. 13, 2012, killing 32 people. (60 minutes)