So you want to fly to another planet? Well, you'd better prepare for a roller-coaster ride.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/q4zghbO36NM" height="1" width="1"/>
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So you want to fly to another planet? Well, you'd better prepare for a roller-coaster ride.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/q4zghbO36NM" height="1" width="1"/>