StarTalk Radio Will Aliens Care About National Borders?

We all know Neil deGrasse Tyson and Bill Nye are friends, but that doesn’t mean they agree on everything. In our latest “How Tweet It Is” segment, Neil talks about an angry tweet he sent about “artificial borders” after a visit to the passport office.
Bill challenges Neil about the validity of some of those borders, and then the two discuss what a hypothetical alien visitor or Martian might be concerned with when visiting our fair planet.
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