NOVA
The Planets: Mars
The dry, red planet Mars was once a blue water world studded with active volcanoes and may have even had the ingredients to support life. (60 minutes)
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UPCOMING EPISODES
Sun, 12/28 at 3:00 am on Austin PBS HDTV
Dog Tales
A look at dog domestication, how scientists test wolf intelligence and decode canine DNA, and what science says about a dog's love for humans. (60 minutes)
Sun, 12/28 at 3:00 am on Austin PBS WORLD
Polar Extremes
Paleontologist Kirk Johnson explores the polar extremes of the planet, including miles-high ice sheets and warm polar forests brimming with life. (120 minutes)
Sun, 12/28 at 4:00 am on Austin PBS HDTV
Cat Tales
The perplexing behaviors of cats have often raised the question of whether humans ever really domesticated felines. (60 minutes)
Sun, 12/28 at 3:00 pm on Austin PBS HDTV
Dog Tales
A look at dog domestication, how scientists test wolf intelligence and decode canine DNA, and what science says about a dog's love for humans. (60 minutes)
Sun, 12/28 at 4:00 pm on Austin PBS HDTV
Cat Tales
The perplexing behaviors of cats have often raised the question of whether humans ever really domesticated felines. (60 minutes)
Wed, 1/7 at 8:00 pm on Austin PBS HDTV
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)