英语听力：自然百科 行星旅行指南：木星 Jupiter—10
时间：2014-08-28 06:55:03
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（单词翻译）
This vast secret ocean of seething1 metallic2 hydrogen, not a molten iron core, is the power house generating Jupiter’s dangerous energy shroud3. But there is one more mystery hidden inside this giant alien onion, the key to the origin of the planets themselves. 400 years after Galileo first trained his telescope on Jupiter, Scott Bolton is following in his footsteps. Scott is a tour director for the next spacecraft to pay the planet a visit, the Juno mission launching in 2011.
Juno is taking the next step beyond what Galileo foreshowed us which， is the telescope to look at the outside. And we’ve come up with ways of looking at what’s inside of Jupiter. And from this, we’ll understand how it was built and how it came to be.
From what we understand, the planet was formed from the disc of gas and dust
swirling4 around our new-born sun. Matter collided with matter. It was a game of gravitational survival of the fattest, a race that Jupiter ultimately won. Planets, like people, are what they eat. Did Jupiter gobble up most of the abundant light-weight gases first before all the solid stuffs started banging around? Or did it form like all the other planets, but grab more than its fair share of ice and gas from the cosmic chiller? The
molecules5 of Jupiter’s first meals, rocks, ice,
vapors6 or dust are still trapped somewhere inside.
When the Galileo probe measured higher levels of rare and heavy gases than anyone was expected, things got more complicated.
That did not fit any theory of how the planets were made. And so in one quick
scoop7 of time, all the theories of how the planets were made, including the Earth, were not the window.
Juno will continue where Galileo left off, trying to
unravel8 the mystery of Jupiter’s formation.
We do this by looking down deep in Jupiter and understanding first whether there is a solid core in the middle of it.
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