NOVA.

NOVA

What Are UFOs?

Astrophysicists and engineers look at evidence that supports the existence of UFOs. (60 minutes)

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UPCOMING EPISODES

Sun, 5/3 at 3:00 am on Austin PBS HDTV

Athens: Birth of Democracy

Archaeological investigations into the origins of democracy in Greece 2,500 years ago; mass graves and ancient ruins where tyrants were murdered shine light on the birth of a revolutionary form of government. (60 minutes)

Sun, 5/3 at 4:50 pm on Austin PBS HDTV

Athens: Birth of Democracy

Archaeological investigations into the origins of democracy in Greece 2,500 years ago; mass graves and ancient ruins where tyrants were murdered shine light on the birth of a revolutionary form of government. (70 minutes)

Tue, 5/5 at 6:00 pm on Austin PBS WORLD

Athens: Birth of Democracy

Archaeological investigations into the origins of democracy in Greece 2,500 years ago; mass graves and ancient ruins where tyrants were murdered shine light on the birth of a revolutionary form of government. (60 minutes)

Tue, 5/5 at 11:00 pm on Austin PBS WORLD

Athens: Birth of Democracy

Archaeological investigations into the origins of democracy in Greece 2,500 years ago; mass graves and ancient ruins where tyrants were murdered shine light on the birth of a revolutionary form of government. (60 minutes)

Wed, 5/6 at 7:00 am on Austin PBS WORLD

Athens: Birth of Democracy

Archaeological investigations into the origins of democracy in Greece 2,500 years ago; mass graves and ancient ruins where tyrants were murdered shine light on the birth of a revolutionary form of government. (60 minutes)

Wed, 5/6 at 8:00 pm on Austin PBS HDTV

Decoding the Universe: Cosmos

How discoveries over the past 50 years have revolutionized people's understanding of the universe. (60 minutes)

Thu, 5/7 at 1:00 am on Austin PBS HDTV

Decoding the Universe: Cosmos

How discoveries over the past 50 years have revolutionized people's understanding of the universe. (60 minutes)