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原文: 科学家发现具有潜在生命迹象的行星 Scientists in the United States say they've discovered a new kind of potentially life-bearing rocky planet in a distant star system known as Kepler 10C. It has 17 times the mass of the earth and a diameter more than twice that of our planet. Astronomers say they were surprised that this heavy, much denser planet had managed to remain solid without losing atmosphere and ballooning into a gaseous giant like Jupiter. BBC News. 译文: 美国科学家称,他们在遥远星系开普勒10C中发现了一颗新的具有潜在生命迹象的行星。这颗行星的质量是地球的17倍,直径是地球的2倍多长。天文学家吃惊的是——这颗沉重而又质密的行星竟能保持固体化,且又完好地保留了大气层;除此之外,它也没有像木星那样因为过多地膨胀变成气态行星。 |
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最新喜欢:zhaole...
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沙发#
发布于:2014-07-17 14:46
感觉很练听力。。。
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板凳#
发布于:2014-07-17 14:47
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地板#
发布于:2014-07-17 14:48
cathy102425:恩恩,从今天起每天会发几个的。你跟着他一句一句模仿着,还练口语哦~回到原帖好棒 |
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4楼#
发布于:2014-07-17 14:48
人类可不可以居住呢?
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5楼#
发布于:2014-07-17 14:48
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6楼#
发布于:2014-07-17 14:49
zhaoleping1:人类可不可以居住呢?回到原帖...布吉岛... |
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