BBC UKChina Titan’s Ice Volcano 土卫六发现冰火山
[audio]http://language.chinadaily.com.cn/bbc/media_english/assets_8032361/me_116_volcano_report_101217_me_116_volcano_report_au_bb.mp3[/audio][font=Verdana, 宋体, helvetica, arial, sans-serif][p=30, 2, left]Background:土卫六是土星最大的卫星，它主要是由水、冰和山脉组成。科学家近日在旧金山召开的美国地球物理学联合会上宣称他们可能在土卫六上发现了冰火山。[/p][/font][color=#333333][font=Verdana, 宋体, helvetica, arial, sans-serif][size=13px]And now the Cassini [b]probe[/b] has [b]spotted[/b] a 1,500m-high mountain with a deep pit in it, and what looks like a flow of material nearby.[/size][/font][/color][font=Verdana, 宋体, helvetica, arial, sans-serif][p=30, 2, left]Titan shroudedis a mysterious world. Because it's [b]shrouded[/b] in a thick, oily [b]haze[/b], it's extremely hard to identify anything at the moon with confidence. But with temperatures that [b]plunge [/b]to minus 180 Celsius at the surface, researchers had suspected it might have ice volcanoes.[/p][p=30, 2, left]Scientists can only [b]speculate[/b] what sort of material a cryo-volcano might [b]erupt[/b], but the complex chemistry at Titan suggests it could be a [b]slushy[/b] water-ice containing ammonia.[/p][p=30, 2, left]If there are a lot of carbon [b]molecules[/b] present, the lava could even look like softened asphalt, candle wax or even polyethylene.[/p][p=30, 2, left]The team which discovered the mountain have [b]dubbed[/b] it "The Rose".[/p][/font] "Rose",what a beautiful name! It leaves behind limitless imagination。。。。
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