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ion, from nine to three hours.WENCHANG, Hainan, Dec. 28 -- With a long-cherished Chinese space dream, China's largest carrier rocket Long March-5 made a successful flight Friday evening, inspiring China to explore deeper into space.

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However, the second large rocket, Long March-5 Y2, suffered a failure, as a malfunction occurred less than six minutes after its liftoff on July 2, 2017. A component of carrier rocket Long March-5 Y3 is being lifted at a plant on Nov.

7, 2019. (Photo by Tu Haichao/Xinhua) The research team discovered that the failure was caused by a problem in the engine of the first c

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ore stage of the rocket. "We have made improvements to the design, materials and technologies of the engine," said Li Dong, chief designer of the Long March-5 rocket from the China Academy of Launch Vehicle Technology

(CALT) under the China Aerospace Science and Technology Corporation. Qu Yiguang, deputy general director of the Long March-5 Y3 research team, said, "Under great pressure, the research team has put all the wisdom and e