Tags: astronomy, survival
Yeah, we survived another near miss... near in the astronomical scheme of things.
If a 3,600-foot-long asteroid had hit Earth, it would have had the effect of an X-kiloton nuclear bomb. I don't know the number, sorry. I tried to look it up, and I did find some discussion of how we could use a nuclear bomb to destroy an asteroid that really was about to hit us:
With only weeks' notice, we would have to hastily come up with a plan.... If we blow up an asteroid that is too close to Earth, the end result could be just as catastrophic—a "shotgun effect" that could rain down fiery fragments of debris over a huge portion of the Earth.... And then we need to know what the asteroid is made of. Whether we would try to hit it with a spacecraft, divert it with a nuclear blast, or completely destroy it with a nuke depends significantly on what the asteroid is composed of, whether it's light, porous silicates or dense iron-nickel alloys known as meteoritic iron.... Another problem is that the fusing mechanism of a nuclear device would be destroyed in an impact over 671 miles per hour effectively disarming the nuke...