英语听力:自然百科 行星旅行:土星 Saturn—19(在线收听

 The Prime Meridian(本初子午线) here is the longitude, the mark on the ground, from which all great voyages are measured.

 
This is the view back to our remarkable home planet/ that the first human out here can look forward to, a distant blue dot lost in the beauty of Saturn's backlit rings. It’s a real image, another perfect postcard from Cassini urging us into the heavens.
 
Humans have looked out from the shores of seas and oceans and imagine great adventures. 
 
Now think about standing on the shore of an alien scene. 
And we know the shores are there, which have to go and experience, and that's what i like to do. I’d like to go, land on the balloon, step out, pick up one of those rounded pebbles and trusted Huygens .
 
And I’ve purposed that maybe we have a talk about the planetary park down the road, what should we preserve/ for / future’s generations, you know. Do you want to go on a mine tagging for its methane? 
 
They will go, mess up about the places, perhaps. But Saturn’s just a wizzard place. And we should probably leave that alone. 
 
With so many interesting moons in its flight path, NASA is making plans for what to do when Cassini’s mission comes to an end, around 2017.
We want to make sure that the spacecraft doesn’t hit one of these bodies, and so what we are going to do is to put it into the atmosphere of Saturn.
Crash it in the Saturn and burn it in it, blaze of glory after a reach twenty -years of expiration in space, all the molecules that currently make up the Cassini’s spacecraft but still be in Saturn. And in fact it will there forever.
 
A fitting fiery funeral, for one of the greatest inter-planetary voyagers of all time.
 
It might be a ball of gas and floating water, but Saturn is a very solid destination both for science and for viewing spectacular science. We’ ve only begun to realize its richest offers and only because we have sent aircrafts to stay. 
 
It’s the same story everywhere in the solar system. You’ll never know what you are missing if you never go.
  原文地址:http://www.tingroom.com/lesson/zrbaike/2012/273711.html