Questions no one knows the answers to

Category: Science

Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers.

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Origins of Altruism

How does altruism begin. Is it biological? Is it taught? Researchers are trying to understand the DNA of altruism by studying toddlers.

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Defeating Gravity

Flight takes more than wings. We need the right kind of air, the perfect materials cooked up over billions of years, and cosmic forces that are just right for us to leave the ground without tumbling off into space.

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The Moust Astounding Fact

Astrophysicist Dr. Neil DeGrasse Tyson was asked by a reader of TIME magazine, "What is the most astounding fact you can share with us about the Universe?" This is his answer.

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Fighting for Fertility

In the United States, some 10% of people who wish to have children struggle with infertility. It’s especially common in the African American community, and fertility preservation can be difficult for transgender individuals as well. But why is this? And what can be done about it? NOVA explores barriers to fertility, from the social to the biological, and the state of assisted reproductive technologies. Follow the journeys of people navigating challenges from structural inequalities and racism to falling sperm counts.

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Why Are We Here?

Can the participants work out why they exist at all? Is it destiny or pure chance?

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On Religion

β€œI would rather have questions that can't be answered than answers that can't be questioned.”

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