文章列表

• 1.英语听力：自然百科 行星旅行：土星 Saturn—17
• These are just bold first steps on a journey that's just begun. Even before the mission is over, Cassini has left a thirst for a return trip. Planetar...
• 2.英语听力：自然百科 行星旅行：土星 Saturn—16
• The by-product of billions of years of production from the chemical smog factory in the upper atmosphere, the grains in Titan's dunes may literally fa...
• 3.英语听力：自然百科 行星旅行：土星 Saturn—15
• Huygens landed on Titan. It/ sent back these few hundred pictures, until the batteries died and the probe froze solid. The probe landed with a thud, o...
• 4.英语听力：自然百科 行星旅行：土星 Saturn—13
• Planet earth never attempted to land on such a distant world before. With Huygens probe on final approach to Titan, operations switch to European miss...
• 5.英语听力：自然百科 行星旅行：土星 Saturn—12
• Cassini has solved the mystery of how at least one of Saturn rails' formed, and this may help solve the bigger mystery of life beyond Earth, * may be ...
• 6.英语听力：自然百科 行星旅行：土星 Saturn—11
• Heres the surprise entry into search for life, this little moon that youd expect to be pretty dead and dull, and coming out of the South Pole of it is...
• 7.英语听力：自然百科 行星旅行：土星 Saturn—10
• It was unraveling a puzzle and so the magnetometer team says lets go closer, as we go closer, we watched as the star went through and noticed the chan...
• 8.英语听力：自然百科 行星旅行：土星 Saturn—9
• We are interested in studying seasonal changes on Saturn, because of its extremes affected the rains. Already we know the sky was blue, when the north...
• 9.英语听力：自然百科 行星旅行：土星 Saturn—8
• Saturns apparently peaceful appearance is due to a haze of high level ammonia in the upper atmosphere, by looking deep into Saturn in the infrared, us...
• 10.英语听力：自然百科 行星旅行：土星 Saturn—7
• And the icy grains on the Saturnian beaches are washed by passing traffic. When a moon comes by, it creates a wake just like a motor boat creates a wa...