@mashable “Junkyard Mars” (http://amzn.to/1BgItTI ) is the skeptics bible re Mars colony, asteroid mining, etc. Please retweet. #mars #NASA
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RT @lokyconsurgens
@NASA@mashable: Mars Helicopter: An aerial drone that could one day... http://on.mash.to/1xQJvVv pic.twitter.com/WcbQsvLEfm
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On
@mashable: Crazy Engineering: Mars Helicopter https://youtube.com/watch?v=vpBsFzjyRO8 …#SavedYouAClickThanks. Twitter will use this to make your timeline better. UndoUndo
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