CNN's Lisa Sylvester reports on earth's defense against exploding meteors and fly-by asteroids.
CNN's Tom Foreman takes a look at a meteor that exploded over Russia and an asteroid that passed by Earth.
Rep. Steve Cohen talks to CNN's Kate Bolduan about his 24-year-old daughter he learned about three years ago.
The Situation Room with Wolf Blitzer is the command center for breaking news, politics and extraordinary reports from around the world. Tune in weeknights from 5-7pm ET and Saturdays from 6-7pm ET on CNN.
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