Buzz Aldrin and Neil deGrasse Tyson celebrate the 80th anniversary of Pluto’s discovery

The World

Eighty years ago an astronomer named Clyde Tombaugh, who worked at the Lowell Observatory in Flagstaff, Arizona, made a discovery that would capture the imagination of space enthusiasts for generations. He found Pluto.

In honor of that discovery, we hear from Buzz Aldrin, retired astronaut and the second man to step on the moon, and astrophysicist Neil deGrasse Tyson about our fascination with planets ? “dwarf” or otherwise ? and the future of space exploration.

Are you with The World?

The story you just read is available to read for free because thousands of listeners and readers like you generously support our nonprofit newsroom. Every day, the reporters and producers at The World are hard at work bringing you human-centered news from across the globe. But we can’t do it without you: We need your support to ensure we can continue this work for another year.

When you make a gift of $10 or more a month, we’ll invite you to a virtual behind-the-scenes tour of our newsroom to thank you for being with The World.