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When pop star Katy Perry and five other women made a much-publicized trip to the edge of space earlier this year, they faced ...
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Space.com on MSNHappy anniversary, Mariner 4! NASA probe got 1st-ever up-close look at Mars 60 years ago todayAfter its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...
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