Planetary news 06-4/ 行星新資訊 06-4
Credit: ESA/MPS/DLR/IDA
Was Venus once a habitable planet? 金星也曾有海洋。
http://www.esa.int/esaCP/SEMQ9OLZLAG_index_0.html
Credit: NASA/JPL/MSSS
Widespread Glacial Meltwater Valleys on Mars. 火星古冰川遺跡。
http://news.brown.edu/pressreleases/2010/06/mars#
月球行星組
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