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Use wechat scan QR code < / P > < p > to share with friends and circle of friends < / P > < p > < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%BE%8E%E5%9B%BD%E5%AE%87%E8%88%AA%E5%B1%80 "> NASA < / a > (< a target ="_ blank" href=" https://news.163.com/news/search?keyword=NASA "> NASA < / a >) is targeting its space launch system (SLS) < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%81%AB%E7%AE%AD "> rocket < / a > conducts preliminary Green Run heat test and plans to launch the" most powerful "rocket in history as early as January 17. < / P > < p > < / P > < p > SLS is the most powerful rocket developed by NASA since its establishment. It will support the "Artemis" return to the moon program, and can deliver a payload of up to 27 tons (24000 kg) to the moon. In its eight part test, NASA started the SLS core level liquid fuel engine without solid fuel booster ignition. "In our preliminary test run of the wet dress rehearsal, the core level, controller and test software all worked perfectly. When the fuel tank was fully loaded and replenished for about two hours, there was no leakage," said Julie bassler, SLS manager at NASA Marshall Space Flight Center. So far, all the test data has given us confidence to continue to complete the test. " < / P > < p > in the test, all four rs-25 engines at the core level were started at the same time for at least 8 minutes. "The SLS core stage will be integrated with other parts of the rocket and NASA < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%8C%8E%E6%88%B7%E5%BA%A7 "> Orion < / a > < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E9%A3%9E%E8%88%B9 "> the spaceship < / a > was assembled to prepare for the test flight of Artemis I, the first combined flight of SLS and Orion, and the first mission of NASA's lunar program." < / P > < p > Barry Robinson, project manager of the SLS core stage preliminary test run, said the next few days will be crucial for NASA as the team prepares the Artemis I rocket stage and the B-2 test stand at the Stannis Space Center. < / P > < p > NASA said that testing the core stage of SLS rocket is the joint efforts of the agency and industry partners. Boeing is the main contractor of NASA's rocket core stage, and Aerojet Rocketdyne is the main contractor of rs-25 engine. In previous tests, NASA evaluated the SLS's avionics, propulsion and hydraulic systems. (small) & nbsp;

2023-03-22 10:04:25