The search for our solar system's ninth plane...

Why does searching your symptoms online always leave you more frightened than before? As former chief medical officer of WebMD, physician John Whyte spent years believing more information meant better health — until he saw how too much of it was making people spiral. In a world o ...  Show more

The author of the award-winning novels “Pachinko” and “Free Food for Millionaires,” Min Jin Lee, discusses her remarkable career and the long journey and intention behind her Korean diaspora novels.Learn more about our flagship conference happening this April at attend.ted.com/po ...  Show more

This week on Planetary Radio, we delve into the evolution of humanity's relationship with one of our planet's most awe-inspiring phenomena: total solar eclipses. Ed Krupp, the director of Griffith Observatory in Los Angeles, will share insights from the fascinating field of ar ...

How did the planets form? How did life happen? Where did Earth’s water come from? To answer questions like these, scientists used to go big—looking at planets, dwarf planets, and moons—but now small is the new big. Technology is zooming in on the pint-size stuff—asteroids, comets ...  Show more

If television shows and movies are any indication, we humans spend a lot of our time subconsciously preparing for UFOs carrying maleficent aliens to descend on Earth. But should we rush to create an intergalactic battle plan? In actuality, finding otherworldly life won’t be so ...

When you look up at the night sky, what do you see? A few stars, or a satellite, maybe even one of the seven other planets in our solar system? But how many planets are there in all of outer space? We asked astronomer Mark Popinchalk to help us find the answer! Got a question tak ...  Show more