Near-Earth asteroids: Hunting and tracking upcoming encounters 

 Here we explore whether there are any upcoming asteroid encounters and how NASA and other space agencies actively monitor near-Earth asteroids that have the potential to hit our planet. 

https://cdn.mos.cms.futurecdn.net/LYaCBz6UWwB4om83KHvtT7.gif

https://www.space.com/near-earth-asteroids-approaching-encounters-tracking