【天文学】土星光环

Is There Life On Other Planets? Weve all been hearing about ongoing Mars exploration, and how water probably used to be abundant there. And a water spewing volcano was recently discovered on a small moon orbiting Saturn. Water is one sign that life m

发表于:2018-12-31 / 阅读(196) / 评论(0) 分类 英语听力文摘 English Digest

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,

发表于:2019-01-03 / 阅读(134) / 评论(0) 分类 VOA2004(下)--健康科技

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Galileo first spotted Saturn's rings 400 years ago. But since then, scientists have been stumped about how they got there. Because the rings are almost pure wa

发表于:2019-01-08 / 阅读(173) / 评论(0) 分类 Scientific American(十二)月

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

发表于:2019-01-11 / 阅读(93) / 评论(0) 分类 VOA标准英语2008年(三月)

How did all the planets get there? How is it only our planet has life? Will we ever travel to other planets? These are questions I often think about. I think our planet is the best. It looks so beautiful from space with its mixture of blue and green.

发表于:2019-01-21 / 阅读(102) / 评论(0) 分类 纯正英语一分钟

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

发表于:2019-01-22 / 阅读(96) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(105) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(93) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(114) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(109) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(99) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(113) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(108) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(112) / 评论(0) 分类 自然百科2012年

Are we alone ?And it ties into all the big questions: how do we get here ? where are we going ?Are we a part of a bigger picture? But for the longest time ,the question was taboo to science . Before the Mid-1990s ,it was considered somewhat embarassi

发表于:2019-01-22 / 阅读(115) / 评论(0) 分类 自然百科2010年

How did all the planets get there? How is it only our planet has life? Will we ever travel to other planets? These are questions I often think about. I think our planet is the best. It looks so beautiful from space with its mixture of blue and green.

发表于:2019-01-24 / 阅读(128) / 评论(0) 分类 听一分钟英文-P

黑暗中的烟圈: Smoke rings in the dark by Gary Allan Well I won't make you tell me What I've come to understand You're a certain kind of woman I'm a different kind of man I've tried to make you love me You've tried to find a spark Of the flame t

发表于:2019-02-06 / 阅读(103) / 评论(0) 分类 经典英文歌曲

送你一颗大钻戒 Chipmunk - Diamond Rings I ryhme ryhme, thats why I shine shine, and you can roll anyone of my shows, no lights in my bag no eye sight I gotta keep on ryhmin' man, so i keep on shinin man I aint gonna be a one hit wonder, I am f

发表于:2019-02-06 / 阅读(132) / 评论(0) 分类 好听的英文歌曲

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

发表于:2019-02-07 / 阅读(182) / 评论(0) 分类 实用英语

Divers have spent the night searching the corridors of the passenger ferry that sank off the coast of South Korea, almost 300 people are still missing. The country's Prime Minister Chung Hong-won has warned there is not a second to lose, and urged th

发表于:2019-02-23 / 阅读(81) / 评论(0) 分类 英语听力精选进阶版
学英语单词
accountant's resposibility
alelad
Alprazolan
American ash
antitreatment
be tied to the a pron strings to someone's apron strings
brain tire
cadaveric alkaloid
can type flameholder
Canellaceae
Casky
cateyed
Ch'arents'avan
character relation
chat-show
chisel plow
chrome-plating plant
clasp-knife rigdity
collutulate
combatives
conditios
coubling resistance
dead last
denominally
disclamation
displacement component
electrostatic latent image
expenses against revenue
factrix
falsettoes
First Cause
flood region
galv
gonderia hirci
graphitization
gyneplasty
Hellstromism
hyalommaasiaticum
hyaloplasm
ice gorge
IF-2mt
IFMP
imperial scale
insulin shocks
intermittent movement
keigwin
kodamaius brevicornis
l-bas
Landruma
larenz
lysozymuria
marker mixer
Michmash
Modular Plug
Ms transformation
NE-LY
neritids
nonectodermal
Nucleus nervi phrenici
nut-rolls
Nyquist flank
Penteleu, Vârful
perdidos
Platform for Internet Content Selection
podslurping
point basis
porites solida
Poriyya
positive nonzero integer
preliminary planning
prototile
ptochologists
quadrivalent derivative
quantitative analysis method
quick dependable communication
radio-frequency converter
remained gas
retain funds for depreciation
ridge lap
rockface
role norm
ruling of final instance
scale degrees
Schreiber's aster
self-deprecation
servo burst
shear mixing
shiftees
sigmoid conduit
silver potassium fulminate
strunt
supplementary schedules
system control block
tonnage measurement regulation
trans-Golgi
tubercula superius auriculae
uniform-gradient series
veinclearing
verificationisms
videorecorded
vivian chow
wtc