The Roman feast of Saturnalia 农神节的盛宴

Our history and our culture have come about because a lot of ordinary people have done some really terrible jobs. And our traditional Christmas is no exception. However dreadful it's been, having to d

60秒科学:Fog Found on Saturn's Moon Titan

Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th

NASA Reveals Close-Up Images of Saturn's Mysterious Moon Tit

By Jessica Berman The U.S. space agency has released the first close-up pictures of Titan, Saturn's secretive, giant moon. Photos from the international Cassini spacecraft show the orbiting object shr

Spacecraft Finds Saturn's Rings Dirty and Decaying　

By David McAlary The U.S. Cassini spacecraft orbiting Saturn has found evidence that the giant planet's dazzling rings are decaying and may eventually be gone. And the rings are dirtier than thought,

VOA常速英语2008年-Satellite Studies Saturn Moon, Finds Conditions

By Paul Sisco Washington 19 March 2008 The planet Saturn has long fascinated astronomers because of its distinctive rings and multiple moons. NASA's Cassini spacecraft visited one of Saturn's moons last week, collecting samples, data and pictures of

英语听力：自然百科 行星旅行：土星 Saturn—6

Everyone is familiar with the rings of Saturn. But what would you highlight if it were you sending back the postcards? Every tour itinerary has one main attraction. With Saturn, you just can't miss the rings. As imaging team leader for Cassini, Carol

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 wake that goes behind it. And I kind of imagine the ring particles doing an intricate cosmic dance aro

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, using the planets own internal heat as a light source, Cassini has revealed the planets true nature. T

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 northen hemisphere came out of the shadow and it's now turn sort of pinkish yellowish, hazy color, becaus

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 a jet of water ice, all the things you need for life are there. Theres an energy source, theres a w

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 the hottest ticket in town, but don't overlook the heavy weight container for the titan lovemoon wit

英语听力：自然百科 行星旅行：土星 Saturn—4

Hopes and dreams of thousands of scientists and engineers are resting on the next few moments. Weve been to Saturn twice before with the voyager I and voyager II spacecraft. But rather than these quick Kodak moments, we want to take a nice long leisu

英语听力：自然百科 行星旅行：土星 Saturn—3

Saturn might be the second largest planet in the solar system, but like gas giant neighbor Jupiter, its a triumph of show over substance. Saturn, first of all is a big giant gas ball, actually its a big giant ball of fluid, and the outer parts of it

英语听力：自然百科 行星旅行：土星 Saturn—2

Imagine boarding a flight to Saturn, what would you need to know before traveling? The best ringside vantage points? The must-see moons? Think of this as your personal guide to the splendor of the Saturnian system. A wandering spot of light twice as

英语听力：自然百科 行星旅行：土星 Saturn—5

With Saturn's 62 known moons, Cassini finds itself in good company without of this world photo opportunity to make even a seething professional gasp. Saturn is the most photogenic planet in all the solar system, so I just, you know, I mean, you could

英语听力：自然百科 行星旅行：土星 Saturn—19

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 l

2007年VOA标准英语-US Spacecraft Finds Signs of Seas on Saturn's B

By David McAlary Washington 14 March 2007 A U.S. spacecraft studying Saturn has found evidence of large seas on its biggest moon, Titan. But if they are seas, they would not be filled with water. Instead, as VOA's David McAlary reports, they would be

英语听力：自然百科 行星旅行：土星 Saturn—1

No planet beats Saturn for jaw-dropping beauty. Saturn is the most photogenic planet in all the solar system. Some of the pictures are to die for. But the postcards only tell part of the story. Beauty is only skin deep. It really is rolling and seeth

白领商务英语－经典案例11：Saturn

Employee-Management Relations Facing Business Challenges at Saturn Negotiating a Radically New Contract Richard LeFauve of General Motors and Donald Ephlin of the United Auto Workers (UAW) had been ad

神秘的月球 第11期

As the moon pulls away it will put an end 随着月球日渐远离 to one of nature's most glorious spectacles; 自然界中最壮丽的奇景也将画下句点 a total solar eclipse. 那就是日全食 The moon is 400 times smaller than the sun. 月球