The asteroid, about a third of a mile wide at its equator, poses no immediate threat to our planet. But hundreds of years from now, there is a small chance that Bennu could slam into Earth.

the expansive scar in Earth’s surface from the dinosaur-killing asteroid. “A lot of people have questioned: How could the Chicxulub impact—albeit a huge one—be so globally destructive?” ...

The curious minds at What If reveal what would happen if the asteroid that killed the dinosaurs struck today. Maddow Blog | ...