A crowd of about 1,000 people gathered in Springfield at the Abraham Lincoln Presidential Museum last Friday. They were there to hear Neil deGrasse Tyson speak.
The well-known astrophysicist directs the Hayden Planetarium at the American Museum of Natural History in New York City. He also hosted "Cosmos: A SpaceTime Odyssey," the television show appeared on Fox and won four Emmy awards, and he's authored several books. Tyson spoke with reporters before he gave a speech while picking up the Lincoln Leadership Prize. Listen to part of that, as well as the talk he gave for fans and students.
*WEB EXTRA: Listen to Dr. Tyson answer more questions, like: "Who built the sun?" - "What do you think about dark energy?" And, "What inspired you to become an astrophysicist?"