Since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate, or writer who provides a unique perspective on the quest for knowledge about our Solar System and beyond. The full show archive is available for free.

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China on the Final Frontier

With missions like Chang’e 4 on the far side of the Moon, China has firmly established itself as a leader in space exploration. Space journalist Andrew Jones helps us explore the nation’s ambitious near and long-term plans.

Mysterious Tabby’s Star, With Tabby Herself

It may not host an alien “megastructure” but Tabby’s Star still guards many mysteries of science. Astronomer and astrophysicist Tabetha “Tabby” Boyajian leads the worldwide team that is revealing this strange light in the sky.

Thomas Edison, Eclipse Chaser!

Former NPR science reporter David Baron discusses the stories of men and women who made their way across the American West to view and document the total solar eclipse of 1878.

A Recipe for a Small Planet

Astronomer and planetary scientist Courtney Dressing is the lead author of research that may have found the formula for the mass and composition of Earth-like planets. She reveals the ingredients and why she spent time at JPL while in high school.

Taikonauts on the Moon? A Conversation With Leonard David

Leonard David has been writing about space exploration for more than five decades. Now he has turned his attention to China’s ambitious plans.