Physicist Don Gurnett has recorded what you might hear from inside a spacecraft, and it isn't just the sound of desolate silence.

a model brain

Daniel Tammet has an amazing mind. He can recite from memory 22 thousand digits in the number pi. He can learn a foreign language in a week. But he also has trouble with simple directions, like telling the difference between left and right, and he's had to teach himself to laugh at jokes. Tammet...


TTBOOK technical director Caryl Owen explains why she’s always been fascinated by rocks and the language of geology.

a smoking man

Smoking cigarettes is bad for you. Ok, we can all agree on that. So then, why are 20 percent of us still smoking? That's 60 million Americans. And new smokers start every day. Why? It's more than just nicotine. In this hour of To The Best Of Our Knowledge, we'll explore the sublime pleasures of...


Deborah Blum talks about the serious scientific effort undertaken by an elite group of scientists and scholars a hundred years ago to investigate the supernatural.


Ray Kurzweil tells Steve Paulson humans will merge with new technology and vastly improve their intelligence.

a night sky

James Gardner is the author of “Biocosm: The New Scientific Theory of Evolution: Intelligent Life Is the Architect of the Universe.”

Australopithecus africanus at the University of Zurich.

Ann Gibbons is an award-winning science writer and author of “The First Human: The Race to Discover Our Earliest Ancestors.”


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