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off the Dinosaurs show Humanity lasts long enough that is but that size hit looks like only once in a 100 million years or more we haven't had a hit that
size for the last 500 million years so it does look like it's a rare event to have something that big a 10 kilometer asteroid hit
us well no just the whole sense of when is it going to happen again and it appears that most most of the big mass extinction has been caused by these
Listen to native speakers pronounce “10 kilometer” in real conversational contexts with synchronized timestamps and subtitles.