Three female mathematicians give us a peek into their abstract and beautiful world. Plus, should large tech companies be subject to the same regulations as nations?

Gates Foundation CEO makes her argument for defending science in a “post-truth” era. Plus, does math have a place in the Supreme Court?

Two scientists want you to stop worrying and love spiders. Plus, a mortician travels the world in search of ‘The Good Death.’

Walter Isaacson discusses how Leonardo da Vinci combined the arts and sciences to create his masterworks. Plus, astronomers talk about the impact of an ancient neutron star collision.

We talk with the today’s sci-fi writers on how they create their dystopian worlds. Plus, Jane Goodall reflects on her life and A.I. researchers decode “baby talk.”

The U.S. government has big trouble managing mustangs. Plus, the ABCs of altcoins, blockchains and cryptocurrency.

In Puerto Rico, how will rescue efforts progress on a flooded island? Plus we break down what would actually happen during a nuclear war.

Why long dead dinosaurs have plenty to teach us about our future earth. And wildfires have scorched 8.5 million acres of land this year—a look at what’s fueling these fires.

Planetary scientists reflect on the 20-year Cassini mission, which made its final fiery dive into Saturn today. Plus, biologists are waiting to assess Hurricane Irma’s damage to Florida’s wildlife.

Are we alone in the universe? Famed astronomer and alien hunter Jill Tarter talks about her hunt for extraterrestrial life. Plus, the surprising ingredient that makes modern chicken possible: antibiotics.