火星北极有很多纯水冰
Lots of Pure Water Ice at Mars North PoleWritten by Nancy Atkinson
http://www.universetoday.com/wp-content/uploads/2009/01/mars_cap3d.jpg
Planum Boreum, Mar's north polar cap contains water ice "of a very high degree of purity," according to an international study. Using radar data from the SHARAD (SHAllow RADar) instrument on board the Mars Reconnaissance Orbiter (MRO), French researchers say the data point to 95 percent purity in the polar ice cap. The north polar cap is a dome of layered, icy materials, similar to the large ice caps in Greenland and Antarctica, consisting of layered deposits, with mostly ice and a small amount of dust. Combined, the north and south polar ice caps are believed to hold the equivalent of two to three million cubic kilometers (0.47-0.72 million cu. miles) of ice, making it roughly 100 times more than the total volume of North America's Great Lakes, which is 22,684 cu. kms (5,439 miles).
The study was done by researchers at France's National Institute of Sciences of the Universe (Insu), using the Italian built SHARAD radar sounder on the US built MRO. SHARAD looks for liquid or frozen water in the first few hundreds of feet (up to 1 kilometer) of Mars' crust by using subsurface sounding. It can detect liquid water and profile ice.
Mars southern polar cap was once thought to be carbon dioxide ice, but ESA's Mars Express confirmed that it is composed of a mixture of water and carbon dioxide.
The study on Mars north polar cap appears in the journal Geophysical Research Letters, published by the American Geophysical Union.
Source: PhysOrg 翻译了半天...越翻越昏 不懂英文,晕!!!!!!:dizzy::dizzy: 我翻个大概吧，就是告诉我们火星北极的纯水冰和地球上格陵兰、南极冰盖的冰差不多，纯度可以达到95%。火星上南、北极冰盖加起来大概有2、3亿立方千米的冰。以前的研究认为南极（火星）的冰是干冰，现在发现是水和二氧化碳组混合而成的冰。
回2L，发现火星水冰有助于了解生命的起源，以后也有可能开发利用火星水源~ 啥时候可以移民呢。。。拿火星护照，当火星人，喝火星水。。。 啥时候可以移民呢。。。拿火星护照，当火星人，喝火星水。。。
deepgreen 发表于 2009-1-21 18:10 http://www.astronomy.com.cn/bbs/images/common/back.gif
不用着急~那时侯已经没你了~yct57.gif
不用着急~那时侯已经没你了~yct57.gif
一分半 发表于 2009-1-21 18:39 http://www.astronomy.com.cn/bbs/images/common/back.gif
冷冻再解冻，或者保留基因做克隆。。。
冷冻再解冻，或者保留基因做克隆。。。
deepgreen 发表于 2009-1-21 19:12 http://www.astronomy.com.cn/bbs/images/common/back.gif
想得真美，您要是霍金那还有这个可能~yct58.gif
隐藏了一个吧。。。嘿嘿
ring_3_ 发表于 2009-1-21 19:13 http://www.astronomy.com.cn/bbs/images/common/back.gif
这孩子尽把自己当火星人了~::0023:: 火星的孩子们！ 办一个火星冰雕节，每年组织人到火星旅游：）
想得真美，您要是霍金那还有这个可能~yct58.gif
一分半 发表于 2009-1-21 19:24 http://www.astronomy.com.cn/bbs/images/common/back.gif
实在不行就生吧，多生几个把基因传下去。。。
实在不行就生吧，多生几个把基因传下去。。。
deepgreen 发表于 2009-1-22 18:56 http://www.astronomy.com.cn/bbs/images/common/back.gif
……你孩子的基因里还有妈妈的基因了，要在你重孙的基因里分离出你的，科学家还得费很大的力气啊，不知道他们愿不愿意哈~~::070821_18.jpg::
……你孩子的基因里还有妈妈的基因了，要在你重孙的基因里分离出你的，科学家还得费很大的力气啊，不知道他们愿不愿意哈~~::070821_18.jpg::
一分半 发表于 2009-1-22 19:26 http://www.astronomy.com.cn/bbs/images/common/back.gif
仅要分离基因的话，留下某些身体元件就可以了。。。关键即使若干年后再度培育出人来，即使基因相同，还是不是自己呢？ 基因相同可能只是表示你们的生理特征是一样的，可能会有相同的致病基因，但是后天成长环境还是会对人造成很大影响的吧，若干年后你的克隆体被培养出来之后，他接受的新理念和现在的你可是完全不一样的呀~，那思想自然也是不同的~所以他只是和你长得一模一样而已~::070821_01.jpg::
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