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ncsuweb: NC State students wait in line before a town hall with astrophysicist Neil deGrasse Tyson Thursday at SAS Hall.
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ncsuweb: Neil deGrasse Tyson waits to make his big entrance to the auditorium in SAS Hall.
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ncsuweb: Neil deGrasse Tyson poses for a cell-phone photo before his talk in SAS Hall.
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ncsuweb: Tyson gives a big wave to the students in SAS Hall as he enters the auditorium.
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ncsuweb: College of Sciences Dean Dan Solomon introduces Tyson to a full house.
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ncsuweb: Tyson takes questions from the audience at SAS Hall.
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ncsuweb: Neil deGrasse Tyson interacts with the crowd as he takes questions at SAS Hall.
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ncsuweb: Neil deGrasse Tyson makes a point to students at SAS Hall.
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ncsuweb: Students listen intently during a town hall with Neil deGrasse Tyson.
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ncsuweb: Tyson talks about wrapping up an episode of "Cosmos."
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ncsuweb: Neil deGrasse Tyson addresses the NC State crowd.
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ncsuweb: Neil deGrasse Tyson addresses the NC State crowd.
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ncsuweb: Neil deGrasse Tyson addresses the NC State crowd.
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ncsuweb: Neil deGrasse Tyson addresses the NC State crowd.
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ncsuweb: Neil deGrasse Tyson interacts with his audience.
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ncsuweb: Neil deGrasse Tyson works the crowd during his presentation at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson addresses the NC State crowd.
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ncsuweb: Neil deGrasse Tyson models with future scientists at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson signs autographs during the reception following his presentation at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson signs autographs during the reception following his presentation at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson fans wait their turn for photos.
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ncsuweb: Neil deGrasse Tyson chats with the crowd gathered to meet him at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson chats with the crowd gathered to meet him at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson greets his fans at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson takes a look at the BookBot at the Hunt Library.
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ncsuweb: Neil deGrasse Tyson joins in for a selfie outside the Hunt Library.
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ncsuweb: Neil deGrasse Tyson answers questions during his visit to NC State.