Initially if you could make sure that after you blow up an asteroid you will end ... The problem here lies in the fact that we know little about the internal .... A grain of dust is enough to deflect a billiard ball by a large span, given ... Luckily for us, asteroids the size of Bennu, and giant asteroids like the one ... They enter our atmosphere as meteors, where many blow up in mid-air; ... and tracks new objects and will issue warnings about possible impacts.