Quote:
Originally Posted by White Doors
Actually there is a Nasa Program that tracks these, can't remember the name of it now. And one this big would be relatively easy to spot and would have quite a few years warning simply because of the size of it. It's the smaller one's that are more menacing just because there are so many of them.
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Even Nasa can't track all of the big ones or even most of them. At least thats what my Astronomy prof says.
Although this one looked to be the size of North America so maybe.
Edit: well just watched the video again... more like Australia.