Planetary Defense: The Nuclear Option Against Asteroids | Arms Control Association armscontrol.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from armscontrol.org Daily Mail and Mail on Sunday newspapers.
A global network of astronomers keeps its eyes on the skies to warn the public about potential asteroids that could strike the planet. If one is spotted, they will jump into action to warn us.