lindley johnson

DARTing Forward in Planetary Defense | Lindley Johnson | TEDxFoggyBottom

CCCR 2020 Lindley Johnson - What if the Dinosaurs had had a Space Program?

How NASA's planetary defense officer defends us from asteroids

Watching the Skies: Lindley Johnson

Deadly Asteroids: Can We Spot Them in Time? - NASA's Lindley Johnson and Ed Lu (Full Session)

SGU Keynote - Lindley Johnson, NASA Planetary Defense Coordination Office

WATCH: NASA Asteroid Redirection Test Media Briefing - Livestream

Who Defends Earth From Asteroids? - Cheddar Explains

Planetary Defense with Lindley Johnson

Planetary defense test targeting harmless asteroid nearly 7 million miles from Earth

The huge gap in NASA's asteroid-tracking technology

NASA formalizes armageddon office

NASA launches historic, asteroid-deflecting mission to practice saving Earth

Meet NASA's Planetary Defense Officer

Local experts react to NASA 'planetary defense test'

Watch live: NASA's DART first-ever test of planetary defense with Asteroid Dimorphos | DW News

NASA Exploration Science Forum 2017 - Day 2 (Main Room) - Victoria Friedensen, Lindley Johnson

35 SBAG20 Lindley Johnson

Episode #17: Gravity Assist: Asteroid Hunting with Lindley Johnson

Lindley Johnson & Kelly Fast September 2018 Lecture to NOVAC: PHOs & Planetary Impact Mitigation

Gravity Assist: Asteroid Hunting with Lindley Johnson

Brace for impact: NASA conducting 1st Planetary Defense test mission next week

NASA’s DART mission and near-Earth asteroids + a new addition to the U.S. Space Force in 2022

Aspen Ideas: Are We Playing Cosmic Roulette?