NOVA: What are UFOs?

Wednesday, January 14 at 8 p.m.

After decades in the shadows, UFOs are being studied seriously. Are they weather balloons, optical illusions, secret military technology? Or something else? Follow scientists as they try to unravel the mystery of the strangest objects in our skies.

SPOTLIGHT

View the latest ‘Candidates in Conversation’

Sons and Daughters: Tell My Ancestors

America’s Potluck: Be part of a historic celebration on July 5

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