Tyson talks about the possibility of intelligent life on other planets, tackles science deniers on the right and left, and explains why we should invest more in pure science. Tyson also discusses his book, "Astrophysics for People in a Hurry.”

"What's curious to me is you have the liberal community claiming the (moral) high road ...against the science deniers of the right with regard to global warming and evolution in the classrooms... as though they are somehow untainted by non-scientific thinking,” Tyson tells us. "There is a whole portfolio of science denying that also happens in the liberal left."

Investments in pure science led to many remarkable breakthroughs in medicine, technology and physics - often decades after the research began. Following the discovery of quantum physics in the 1920's, "it would take forty to fifty years before we would see the rise of information technology," says Tyson. "There is no information technology without an understanding of quantum physics."

Tyson also discusses his sense of awe and wonder about the secrets of the cosmos.

““You can’t be a scientist and have discomfort with not knowing,” he tells us. “When there is a frontier that’s unexplored, where there are stupefying depths of ignorance, it excites you. It gets you out of bed in the morning and running to the lab.””

— Neil deGrasse Tyson

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