Friday night, people along the U. S. east coast from North Carolina northward observed an extremely bright meteor-- a fireball-- streaking overhead. It was bright enough to be seen above the lights of Manhattan, and was reported as far west as Ohio. NASA estimates the meteor was boulder-sized.
Not to beat a dead horse, but the fireball over the most densely populated part of the United States is yet one more reminder that we need to get serious about planetary defense. A devastating asteroid impact is the one natural disaster that humans could potentially prevent within the next few decades. Moves in that direction are beginning, but the fact is we are in a race, and we know neither the speed of the competition nor how close we might be to the finish line.
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