Not so funny really. Some think it may have been a test of a bunker busting bomb made by Boeing and sold to Israel which is meant to target Iran's deep underground nuclear enrichment facilities which was dropped from outer space, like the one discussed in this article.Conspiracy theory is something that makes us Human. Everyone thinks something like that happens. I think that's pretty funny, really.
It appears that the Russians (or a UFO) may have been the ones who shot it down prior to impact according to some videos. You can see evidence of what appears to be a missile striking the meteor (or bunker busting bomb) prior to exploding.
A lot of covert operations are happening today which the average joe will never know about because he will never even consider the possibility of anything other than what is reported in the mainstream news...and we all know how reliable that is these days.