Lindley Johnson Head Shot

Lindley Johnson

Planetary Defense Officer, NASA

Lindley Johnson is NASA's first-ever Planetary Defense Officer. He previously held the title of Near Earth Object Programs Executive in the Planetary Sciences Division. Lindley was also formerly the Program Executive at NASA Headquarters for the EPOXI mission.

Latest Planetary Radio Appearances

DART smacked an asteroid! So what’s next in planetary defense?

The Double Asteroid Redirection Test was a brilliant success. The leaders of NASA’s Planetary Defense Coordination Office tell us what’s next in the quest to protect Earth.

Space Policy Edition: We're entering a new era of planetary defense (with Lindley Johnson)

The head of NASA’s planetary defense program discusses how the DART mission represents a new era for defending our planet from dangerous asteroids.

It’s Asteroid Week with NASA’s Planetary Defense Officer

The dinosaurs regret their lack of a space program. 200 million years later, humans are gearing up to defend themselves from a species-ending rock.