It most likely is not that we are having too many, it is not likely that we now know about the close encounters. The capabilities to see things that small moving relatively fast has not been arould all that long in the grand scheme of things.. Information plese: Does anyone here in the Gulch know how large the metor that impacted in Arizona was? the Crater appears to be about 11/1 to 3/4 of a mile across. (just guessing. I saw it about 50 years ago and just don't remember the info and am to lazy to look it up :) )