Asteroid a threat of crash into earth?

 The Hill:

NASA says huge, 'potentially hazardous' asteroid will break into Earth's orbit next week 
On Dec. 11, NASA expects asteroid 4660 Nereus to be at its closest point to Earth over a 20-year period.

There is some thought that it would be worth billions to mine such asteroids.  Space X has recently been working on a plan to change the orbit of asteroids by crashing a spacecraft into them. 

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