irreparable
发表于 2025-3-27 00:30:41
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奇思怪想
发表于 2025-3-27 04:06:20
The Ancient Cratered Terrain,le a superficial look at a few Viking images of the upland hemisphere suggests a lunar-like surface, closer inspection reveals not only a difference in the nature of the cratering record but also in the morphology of the craters themselves (Fig. 6.1).
Ancestor
发表于 2025-3-27 08:33:41
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继承人
发表于 2025-3-27 13:20:19
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跟随
发表于 2025-3-27 16:47:23
Mars in the Solar System,stronomer, Tycho Brahe, made careful observations of the movements of Mars which subsequently enabled the brilliant German mathematician, Johannes Kepler, to formulate his three fundamental laws of planetary motion. The first two of these were published in 1609 after the latter realised, having calc
OFF
发表于 2025-3-27 17:59:27
Spacecraft Exploration of the Red Planet,o useful data. It had been launched a mere eighteen months after Yuri Gagarin’s historic flight into space. Two years later, the first successful Mars mission was launched. On November 28th 1964, the US spacecraft Mariner 4 began its long journey to the Red Planet, carrying on board a variety of exp
DUST
发表于 2025-3-28 00:40:03
The Present Face of Mars,; for instance, the whitish spot of Nix Olympica represents the massive volcano, Olympus Mons, while the impact basins of Hellas and Argyre are clearly visible with a telescope as being paler in hue than the surrounding uplands. In consequence, some of the old names from telescopic maps have survive
obsession
发表于 2025-3-28 06:09:31
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Inflamed
发表于 2025-3-28 10:13:15
The Interior of Mars,argely a function of the very limited geophysical and geochemical data that is available. What is known is the mean density which is 3930 kg m., and the mass which is only about one-tenth that of the Earth. When the density value is corrected for the effect of self-compression in Mars’ gravity field
ARC
发表于 2025-3-28 12:43:53
The Ancient Cratered Terrain,evidence for a much more extensive history of modification than has occurred on the Moon. Early impact cratering left a very obvious imprint on both worlds while subsequent impact erosion severely degraded the more ancient craters and basins. On Mars, however, fluvial and aeolian activity, volcanism