NASA says skyscraper-sized asteroid headed toward Earth is ‘potentially hazardous’

Imagine a piece of rock the size of the Burj Khalifa skyscraper speeding through space 15 times faster the world’s fastest manned aircraft. Now imagine that piece of rock buzzing toward Earth on it…
Read more: http://bgr.com/2018/01/17/nasa-says-skyscraper-sized-asteroid-headed-toward-earth-is-potentially-hazardous/?source=Snapzu