A look at the history of the daring treatments that revolutionized the way we fix the human heart. Plus, Thai immigrants who moved to the U.S. lost gut microbes and gained new ones. Are there health consequences?

A state-by-state tour of the top science issues, from energy policy, pollution problems, water conservation, to meat labeling, and much more. Plus, physics mysteries from the animal kingdom.

We talk about blood banks, taboos, and other ways that humans have tried to harness the power of blood. Plus, join us with a panel of space experts to discuss the movie ‘First Man.’

In the past 15 years, C-sections have nearly doubled worldwide. We’ll talk about why. Plus, honey bees, bumble bees, ants, and even spiders can live complicated social lives.

How ready is our voting infrastructure for the upcoming midterm elections? Plus, what can squirrel monkeys teach us about the evolution of human language?

We all think we’re logical. So why do we have so many disagreements? Plus, a conversation with Nobel laureate Frances Arnold.

Yemen is gripped by civil war—and some experts say it could be the first of many 'water wars' to come. Plus, a look at missions to retrieve samples from asteroids.

We find out what it’s like to step into a paleontologist’s boots and discover some dino gold. Plus, efforts to preserve some species in Hawaii found nowhere else on Earth.

Algorithms can influence so much more than what’s on your social media feed, like who gets parole. Plus, scientists can now see how one leaf talks to another—in real time.

How strong is the human-robot bond? How do you know how to relate to a mechanical device? We talk robot relationships. Plus, how do we navigate our work-life boundaries?