Does your dog really think and feel like a human? Do our closest primate relatives have brains and emotions similar to ours? What about the storied intelligence of dolphins and singing humpback whales? And do other species hold surprises for us if we’re willing to look closely?

This video is part of our Brilliant Breakthroughs series: our new 20-episode mini-series exploring the “Eureka!” moments and proud accomplishments of the greatest scientific minds of our time. Join us …

Have you ever spent hours looking for something you just know is there, only to be doubted? In 1987, most astronomers thought there was nothing in the outer solar system, …

Famed neurologist Oliver Sacks joined award-winning journalist John Hockenberry to discuss Sacks’ latest book, which explores the bewitching and surreal world of hallucinations.

Winner of the 2020 Nobel Prize in Physics, Sir Roger Penrose joins Brian Greene to share insights into black holes, general relativity, quantum mechanics, the mathematical road toward reality, the …

How fast is the universe expanding? Two prominent approaches are finding different answers, propelling cosmology toward a crisis. Wendy Freedman, a renowned astronomer who has spent decades seeking the expansion …