闪烁
发表于 2025-3-21 20:07:22
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agnostic
发表于 2025-3-21 20:21:12
https://doi.org/10.1007/978-3-030-99235-4d a schedule for 1969 which called for missions at roughly two-monthly intervals. The driving force behind this hectic pace had been the desire to satisfy John F. Kennedy’s challenge of a landing on the Moon before the decade was out. Apollo 10’s rehearsal of lunar orbit activities to the point of P
倒转
发表于 2025-3-22 04:10:09
Hui Xi,Seungho Lee,Young-Jun Sone next mission to aim for a more confined site in rougher terrain. To escape the confinement of the equatorial zone, it was necessary to relax the propellant margins. The requirement for a backup site was also deleted, and a launch delay of up to three days would be accommodated by making the landin
剥削
发表于 2025-3-22 07:32:10
The Palgrave Macmillan Animal Ethics Seriesveyed sufficiently to certify them for a landing. However, there was no shortage of attainable alternatives. In addition to the possibly volcanic Marius Hills and Davy Rille, there was the ‘dark mantling’ on Mare Serenitatis that Apollo 14 had been set to sample before it was redirected to Fra Mauro
legacy
发表于 2025-3-22 10:53:51
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解冻
发表于 2025-3-22 14:49:30
https://doi.org/10.1007/978-3-7091-8973-3 in lunar science. Generally, later flights carried larger packages, and much of the first EVA was required to deploy them. Some apparatus was carried by several flights in order to form ‘networks’ that could make coordinated measurements. Later flights carried instruments designed to follow up earl
解冻
发表于 2025-3-22 20:37:00
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Wallow
发表于 2025-3-23 00:47:46
M. F. Damholdt,C. Vestergaard,J. SeibtAt the dawn of the Space Age, the Soviet Union was able to exploit its R-7 rocket’s ‘heavy lift’ to send probes far into space, and the immediate target was the Moon.
Injunction
发表于 2025-3-23 04:09:14
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贫穷地活
发表于 2025-3-23 08:45:38
https://doi.org/10.1007/978-3-642-70674-5The Soviet Luna program can conveniently be divided into those missions prior to Apollo’s lunar landing, and those contemporary with, and subsequent to, America’s exploration of the Moon.