NASA Planetary Defense: Asteroid Day Live

(Recorded live) NASA marked 2017 International Asteroid Day with a live program featuring the agency's Planetary Defense Coordination Office and other projects working to find and study near-Earth objects (NEOs). 

Learn how NASA-funded researchers find, track and characterize NEOs -- asteroids and comets that come within the vicinity of Earth's orbit and could pose an impact hazard to Earth -- and how NASA is working to get our nation prepared to respond to a potential impact threat.

The shows includes guests from NASA and NASA-funded planetary defense coordination programs across the country, including the agency's Headquarters in Washington and Jet Propulsion Laboratory in Pasadena, California.