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, 5/10 at 3:00 am on Austin PBS HDTV

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

Sun, 5/10 at 5:00 pm on Austin PBS HDTV

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

Tue, 5/12 at 6:00 pm on Austin PBS WORLD

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

Tue, 5/12 at 11:00 pm on Austin PBS WORLD

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

Wed, 5/13 at 7:00 am on Austin PBS WORLD

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

Wed, 5/13 at 8:00 pm on Austin PBS HDTV

Exploring the quantum universe. (60 minutes)

Thu, 5/14 at 1:00 am on Austin PBS HDTV

Exploring the quantum universe. (60 minutes)