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Planetary Defense Team

Seal shows a guard in a castle turret using a telescope to watch out for asteroids and comets in the sky.

PDCO Staff

Kelly Fast

Kelly Fast

Acting Planetary Defense Officer

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Lindley Johnson

Lindley Johnson

Planetary Defense Officer Emeritus

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Joshua Handal

Josh Handal

Executive Officer

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Adelle Helble

Adelle Helble

Acting Near-Earth Object Observations Program Manager

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Andrea Riley

Andrea Riley

Program Executive

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Michael Kelley

Michael Kelley

Program Scientist

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PDCO Liaisons and Support

Thomas Statler

Thomas Statler

Program Scientist

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Doris Daou

Doris Daou

Lead for 2029 International Year of Asteroid Awareness and Planetary Defense

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Patricia Talbert

Patricia Talbert

Multimedia Specialist

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Linda Billings

Linda Billings

Consultant

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Planetary Defense Missions

DART with asteroids

DART

The world’s first demonstration of asteroid deflection technology.

NEO Surveyor

NEO Surveyor

Designed to help NASA discover and characterize most of the potentially hazardous asteroids and comets that come within 30 million miles of Earth.

NEOWISE

NEOWISE

A space telescope that is helping NASA find and better understand potentially hazardous near-Earth objects.

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