Asteroid danger: Giant space rock to be on collision course with Earth

There's a giant asteroid flying towards Earth. Detected by a Russian robotic telescope, it is one of the largest - and most dangerous - space rocks approaching our planet's orbit. RT LIVE http://rt.com/on-air Subscribe to RT! http://www.youtube.com/subscription_center?add_user=RussiaToday Like us on Facebook http://www.facebook.com/RTnews Follow us on Twitter http://twitter.com/RT_com Follo ...