Planetary news,05-5／行星新資訊05-5

CKYan

Credit: NASA
(1) New study says even if an early Mars never got above freezing, the brine on its surface could have stayed liquid and supported life.  一項新研究顯示遠古時期火星表面水體含較高礦物成份，即便在冰點下仍處液態，有利當時的生態發展．
http://www.nature.com/nature/journal/v459/n7245/full/nature07978.html


Credit: NASA/JPL
(2) One of NASA's two Mars rovers has recorded a compelling saga of environmental changes that occurred over billions of years at a Martian crater. 機遇號火星車發現火星在過去的幾十億年氣候和水文變化的遺跡．
http://www.jpl.nasa.gov/news/news.cfm?release=2009-088

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