![](http://www.cheapastro.com/wp-content/uploads/2014/03/asteroid_7-210x126.jpg)
188. Asteroid deflection: 101
Education can avoid the mistakes of the past.
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Education can avoid the mistakes of the past.
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Changing the world with Greg Wah from SE2KB.
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Cheap Astronomy gets another go on this fabulous podcast and plugs shamelessly.
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