Planetary Video

Meet the Asteroids (5 Space Rocks to Watch)

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Asteroids are complex. They could tell us where life came from, but they also pose a threat to life on Earth. For these reasons and more, scientists and asteroid hunters are keeping a close eye on our cosmic neighbors. In this video, get to know five of the most important asteroids out there. Find out what they can teach us about our place in the universe, and whether you need to worry about an impact.