An asteroid that's big enough to wipe out a city has a 1-in-43 chance of hitting our planet in the year 2032. But according to new calculations, there's an even smaller chance that it might crash ...

The alternative ... What are we learning about the asteroid's destructive potential? Andrews: The damage it could cause would be localized to a roughly city-sized area, so if it hits the middle ...

The alternative ... What are we learning about the asteroid’s destructive potential? The damage it could cause would be localized to a roughly city-sized area, so if it hits the middle of ...