Dropping Out of Sight West of Heligoland | Center for International Maritime Security cimsec.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from cimsec.org Daily Mail and Mail on Sunday newspapers.
Earth has been punched in the face by asteroids before. It has seen everything from undetectable rock shards that burn up in the atmosphere to the monster-oid that triggered a mass extinction 66 million years ago.