Meteor Seen in Several Western States Streaking Across the Sky

A possible cause for concern; every few months the earth is hit by a meteorite the size of a house.
1:52 | 11/07/13

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Transcript for Meteor Seen in Several Western States Streaking Across the Sky
And next tonight, if you live out west did you see it? The ball of fire in the sky? Tonight we are learning the number of meteors hitting earth is not as rare as we thought. Abc's david wrielth. We have suspicious lights and sparks in the sky. Reporter: Look up in the sky. A meteor. It's about 10 miles off the highway that went into the brush area. Reporter: The shooting star lit up 911 call centers across the southwest. Boom it was across the sky. Reporter: We all saw the movie "armageddon" right? Just how worried should we all be? How big does it need to be before we put bruce willis on a spaceship? So, uh, I presume it has to be big enough to walk around on. Your average meteor streak is left by something no larger than half the size of a pea. Reporter: Fiery rocks from space are a big enough concern the u.N. Has just started considering a plan to create an international asteroid warning network. Astronomers are not too worried about the big stuff, like the meteor that killed off the dinosaurs. That one was the size of mount everest. No, what scares them more, are meteors like the one that hit chelyabinsk, russia earlier this year. That one was about as big as a house. Releasing energy equivalent to a modern day nuclear warhead. 90% are not on the radar screens. Astronomers thought it was likely to happen once every 100 years. Now it's like more than once a decade. Most of the earth surface is water. Reporter: So the next time you see a shooting star, make a wish that we'll all be okay. David wright, abc news, los angeles.

This transcript has been automatically generated and may not be 100% accurate.

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