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ARTEMIS Shoots for the Moon

机译:ARTEMIS登月

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On contact these chemicals exploded, erupting from the base of the lander to slow its speed and start the long, sweeping arc toward the Sea of Tranquility. Humanity's greatest feat of exploration had entered its most critical phase. A lot has changed since those tense minutes in 1969, including advances in computers, avionics, and communications. Modern integrated circuits are light-years ahead of the systems that first flew humans to the Moon, and digital avionics are now standard in modern spacecraft. Optical systems deliver hyper-bandwidth communications, and rocket motors have been tweaked and refined for optimum efficiency. What haven't changed are the exigencies of orbital mechanics and the demands of deep space travel. Landing still requires scrubbing speed from a hurtling spacecraft—changing its velocity or "delta-vee"—and surviving the vacuum, temperature, and radiation extremes of the lunar environment.
机译:接触时,这些化学物质爆炸,从着陆器的底部爆发,减慢其速度,并向宁静的海面发起一道漫长的弧形。人类最大的探索壮举已进入最关键的阶段。自1969年的紧张时刻以来,发生了许多变化,包括计算机,航空电子设备和通信方面的进步。现代集成电路比人类首先飞向月球的系统要快几年,而数字航空电子设备现在已成为现代航天器的标准配置。光学系统提供超宽带通信,并且对火箭发动机进行了调整和改进,以实现最佳效率。不变的是轨道力学的需求以及对深空旅行的需求。着陆仍然需要从飞船上擦洗,以改变其速度或“三角形”,并在月球环境的真空,温度和辐射极限下生存。

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  • 来源
    《Ad Astra》 |2019年第4期|29-33|共5页
  • 作者

    John F. Kross;

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