Video: Earth has had 26 powerful asteroid explosions in 13 years

The article is worth reading in addition to the video. The impact data was analyzed in research by Peter Brown (et. many al.), published in Nature in November 2013:

http://www.nature.com/nature/journal/v503/n7475/full/nature1...

Brown's quote in the article helps balance out some of the sensationalism: "To me, all this data shows just how effective our atmosphere is at shielding us from these things that could cause a lot of damage."

That said, I'm sure Brown is in favor of any new sensors to study the phenomenon, as it seems from his research that existing methods used to estimate potential airburst damage need a lot of improvement.