Planetary defense: Protecting Earth from space-based threats

Planetary defense refers to the effort to monitor and protect Earth from asteroids, comets and other objects in space.

Defending Earth From Cosmic Threats: Planetary Defense Experts Unite!

NASA spacecraft will slam into asteroid in first planetary-defence test

NASA begins work on NEO Surveyor asteroid-hunting space telescope

Earth Protection: Planetary Defense Coordination Office Launched

New nuclear deflection simulations advance planetary defense against asteroid threats

What Satellite Attack Weapon Might The US Reveal Soon? - Breaking Defense

ESA - NEOMIR: finding risky asteroids outshone by Sun

NASA scientist warns Earth is due for 'extinction-level' event

Protecting the Planet: Planetary Protection vs. Planetary Defense