Neil deGrasse Tyson breaks down the unidentified balloon spotted over the United States, why it’s probably not aliens, and what we should do about objects in the sky. Learn about airspace treaties and the geopolitics of flying objects. How many weather balloons are still launched today? Why is the government even interested in this object? Neil talks about the history of alien speculation and why we need extraordinary evidence to support extraordinary claims.
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Neil deGrasse Tyson
