NASA asteroid WARNING: Asteroids a 'MAJOR threat' to humanity too tough to DESTROY NASA has admitted asteroids are a far greater threat to Earth than expected following a study showing deadly space rocks are harder to destroy than anticipated. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:NASA Asteroid Bennu mission: When will OSIRIS-REx land on the giant space rock TODAY?NASA’s Osiris-Rex Arriving at Asteroid Bennu After a Two-Year JourneyNASA asteroid Bennu LIVE stream: Watch OSIRIS-REx arrive at space rock online HEREAlaska earthquake: A THOUSAND aftershocks hit Anchorage since FridayThe Placenta, an Afterthought No LongerNASA asteroid WARNING: Giant 121 foot space rock barreling to Earth TOMORROW