Neil deGrasse Tyson Quotes
If each dead person became a ghost, there'd be more than 100 billion of them haunting us all. Creepy, but cool.
Citations
Tyson, Neil deGrasse (@neiltyson). "If each dead person became a ghost, there'd be more than 100 billion of them haunting us all. Creepy, but cool." Twitter, 30 Oct. 2013.
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Neil deGrasse Tyson is an American astrophysicist, planetary scientist, author, and science communicator.