Journal
IEEE SPECTRUM
Volume 58, Issue 10, Pages 6-8Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MSPEC.2021.9563955
Keywords
Space vehicles; Rockets; Laser theory; Moon; Masers; Microwave sensors; Fractals
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The Chinese spacecraft Chang'e-4 successfully landed on the moon, with the team waiting nervously for vital signals to confirm a soft landing. When the spectral signals were visible, everyone cheered enthusiastically, marking the sweet payoff of years of hard work for Su Yan and her team.
On 3 January 2019, the Chinese spacecraft Chang'e-4 descended toward the moon. Countless craters came into view as the lander approached the surface, the fractal nature of the footage providing no sense of altitude. Su Yan, responsible for data reception for the landing at Miyun ground station, in Beijing, was waiting-nervously and in silence with her team-for vital signals indicating that optical, laser, and microwave sensors had combined effectively with rocket engines for a soft landing. When the [spectral signals were] clearly visible, everyone cheered enthusiastically. Years of hard work had paid off in the most sweet way, Su recalls.
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