SpaceX, a private U.S. firm, on Tuesday afternoon launched its sixth cargo mission to the International Space Station, while failing another attempt to land the spent first stage of its Falcon 9 rocket on a ship in the Atlantic Ocean. [Photo/Xinhua]
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SpaceX, a private U.S. firm, on Tuesday afternoon launched its sixth cargo mission to the International Space Station, while failing another attempt to land the spent first stage of its Falcon 9 rocket on a ship in the Atlantic Ocean.
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