ECG769
发表于 2025-3-30 09:41:52
Climates Gone Wrong: Venus and Mars,and abundant life. But there are two other planets that resemble our own in many other ways: Mars and Venus. A prime motivation for exploring the solar system has been a desire to improve our understanding of the Earth by comparison with our planetary neighbors. At the beginning of the space age, ma
Friction
发表于 2025-3-30 13:36:29
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electrolyte
发表于 2025-3-30 19:56:17
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珊瑚
发表于 2025-3-31 00:34:56
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鲁莽
发表于 2025-3-31 03:34:54
Threat from the Skies: Will a Comet Strike?, long ago, when the solar system was young; similar calamities cannot happen again now that the planets have evolved. Other kinds of catastrophes affect worlds other than our own; we have nothing to fear from sulfurous, Ionian-style volcanism. Even the death of the Sun, which will certainly consume
彻底明白
发表于 2025-3-31 06:08:34
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indemnify
发表于 2025-3-31 10:44:25
978-0-306-43163-0Clark R. Chapman and David Morrison 1989
贞洁
发表于 2025-3-31 14:56:38
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aspect
发表于 2025-3-31 18:15:25
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Mosaic
发表于 2025-3-31 22:17:12
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