"I've wanted to be an astronaut, a doctor, a vet - these are things I've said in interviews. Before that, I wanted to be a mermaid and a fairy."

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The purpose of going to Mars is for humans to first begin to occupy, permanently, another planet in the solar system. The astronauts or pilgrims, whatever you might call them, are going to be very historically unique human beings.

— Buzz Aldrin