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This gadget you see right here was called the digital wall mapper,
你們?cè)谶@里見(jiàn)到的這個(gè)是電子墻體測(cè)繪儀，
and it produced the first three-dimensional map anybody has ever done of a cave, and it happened to be underwater in Wakulla Springs.
它制出了世界上第一個(gè)山洞的三維地圖，那是在瓦庫(kù)拉泉水下。
It was that gadget that serendipitously opened a door to another unexplored world.
正是這小儀器不經(jīng)意地開(kāi)啟了通往另一個(gè)世界的門(mén)。
This is Europa.
這是木衛(wèi)二。
Carolyn Porco mentioned another one called Enceladus the other day.
卡羅琳·波科爾前幾天提到另一個(gè)叫做恩克拉多斯的行星。
This is one of the places where planetary scientists believe there is a highest probability of the detection of the first life off earth in the ocean that exists below there.
研究行星的科學(xué)家相信那里是最有可能探索到有地球之外的初級(jí)生命的地方之一，生命就存在在恩克拉多斯行星的大洋之下。
For those who have never seen this story,
對(duì)于那些從未看過(guò)這個(gè)故事的人來(lái)說(shuō)，
Jim Cameron produced a really wonderful IMAX movie couple of years ago, called "Aliens of the Deep."
幾年前卡梅隆拍出過(guò)精彩的IMAX(巨幕)電影名叫《深海異形》。
There was a brief clip.
這是片中的一個(gè)小片段。
A mission to explore under the ice of Europa would be the ultimate robotic challenge.
探索木衛(wèi)二冰底的任務(wù)將會(huì)成為機(jī)器人的終極挑戰(zhàn)。
Europa is so far away that even at the speed of light,
木衛(wèi)二很遠(yuǎn)，即使用光速，
it would take more than an hour for the command just to reach the vehicle.
指令到達(dá)飛行器也要花一個(gè)多小時(shí)。
It has to be smart enough to avoid terrain hazards and to find a good landing site on the ice.
必須非常聰明才能避免各種冒險(xiǎn)找到一個(gè)好的冰面降落
Now we have to get through the ice.
現(xiàn)在我們還得穿過(guò)冰層。
You need a melt probe.
需要一個(gè)融化器。
It's basically a nuclear-heated torpedo.
它基本上就是一個(gè)核能加熱魚(yú)雷。
The ice could be anywhere from three to 16 miles deep.
冰層可能有3至16英里 (5到26公里）深。
Week after week, the melt probe will sink of its own weight through the ancient ice, until finally...Now, what are you going to do when you reach the surface of that ocean?
一周接一周，融化探頭靠著自身重量下沉穿過(guò)遠(yuǎn)古的冰層，直至最后…當(dāng)你到達(dá)洋面你將要做什么？
