The asteroid known as Florence is going to make a relatively close shave of Earth today, speeding past our planet closer than it has since the year 1890. But asteroids make their presence known around Earth on a regular basis, so why is this one special? Well, because Florence is absolutely huge, and would pose an incredible threat to life as we know it if it were to actually collide with us. Thankfully, NASA says that’s not going to happen — at least not this time around
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