This is what scientists predict could happen to the Earth over the next 500 years. Produced by Kevin Reilly, Rebecca Harrington, and Sarah Kramer. Video courtesy of NOAA,NASA, and Alex Kuzoian.

Damage stretched for 500 square kilometers, destroying 7,200 building and injuring over 1,400 people in its wake. But it could have been even worse had it exploded closer to earth like the ...