Los Angeles, Jan. 19 (Xinhua) -- U.S. space firm SpaceX on Sunday successfully landed the first stage of its Falcon 9 rocket on ground after launching commercial cargo to the International Space Station. Enditem
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Los Angeles, Jan. 19 (Xinhua) -- U.S. space firm SpaceX on Sunday successfully landed the first stage of its Falcon 9 rocket on ground after launching commercial cargo to the International Space Station. Enditem