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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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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

Image of Molly Wasser

Molly Wasser

Public Affairs Officer and Media Lead

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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

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.

DART with asteroids

DART

The world's first demonstration of asteroid deflection technology.

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