Reply to post: Fortunately,

Truck-size asteroid makes one of the tightest fly-bys of Earth ever recorded

Francis Boyle Silver badge

Fortunately,

this was just a tiddler, relatively speaking. There are plenty of rocks out there whose orbit's are well known because they are bigger and easier to see. Those are the ones we need to keep an eye on just in case, one day, we discover one of them is heading our way.

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