挑战者深渊

Q.如果在海底最深处——挑战者深渊——挖一个半径10米且通向太空的圆形传送门，那么海水会以多快的速度漏出去？

Q. How quickly would the oceans drain if a circular portal 10 meters in radius leading into space were created at the bottom of Challenger Deep , the deepest spot in the ocean ?

一个装有氧传感器的深海探测器在海洋最深处——挑战者深渊发现了微生物新陈代谢的迹象。

A deep-sea lander with oxygen sensors found signs of microbial metabolism at the Challenger Deep , the oceans ' deepest spot .

去年，58岁的卡梅隆成为首个独自下潜至太平洋马里亚纳海沟“挑战者深渊”底部的探险家。

Last year , Cameron , 58 , became the first-ever solo explorer to touch the bottom of the Pacific Ocean at the Challenger deep in the Mariana Trench , the deepest surface on earth .

3月25日，这位执导过“终结者”、“泰坦尼克”和“阿凡达”的导演来到了距关岛500千米（300英里）的马里亚纳海沟，一头扎进了挑战者深渊2。

Literally . On March 25th the director of " The Terminator , " " Titanic " and " Avatar " plunged into the Challenger Deep2 of the Mariana Trench , 500km ( 300 miles ) from Guam .

科学家认为生命之所以能存在于这样的深度，是因为该地区富含营养物质——研究人员发现挑战者深渊的沉积物比附近较浅深处的食物供应更充足。

The scientists suggest that life this deep is possible because the region is a nutrient trap - the researchers found that the sediment at Challenger Deep is richer in food supplies than sediment at more shallow depths nearby .

此外只有雅克？皮卡和唐纳德·沃尔什探索过挑战者深渊——正如其名，它是海洋的最深点——他俩于1960年驾驶里雅斯特号深海潜艇下潜至此处。

The only other people to plumb the Challenger Deep-as its name suggests , the most profound point in the ocean - were Jacques Piccard and Don Walsh , who did so in 1960 , in a vessel called Trieste .

此外只有雅克•皮卡和唐纳德•沃尔什探索过挑战者深渊——正如其名，它是海洋的最深点——他俩于1960年驾驶里雅斯特号深海潜艇下潜至此处。

The only other people to plumb the Challenger Deep - as its name suggests , the most profound point in the ocean - were Jacques Piccard and Don Walsh , who did so in 1960 , in a vessel called Trieste .

这与一项不太为人所知的行动形成了鲜明对比，后者只下潜到区区2.5千米，承受了250个大气压（挑战者深渊那里的压强四倍于此）。

This was in sharp contrast to a less publicised mission , to the paltry depth of 2.5km , where the pressure is a mere 250 times that of the atmosphere ( the Challenger Deep 's pressure is four times that ) .