[天] 土星大气成分

The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo

发表于:2018-12-02 / 阅读(138) / 评论(0) 分类 Scientific American(十二)月

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

发表于:2018-12-07 / 阅读(138) / 评论(0) 分类 圣诞特辑

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

发表于:2019-01-02 / 阅读(128) / 评论(0) 分类 60秒科学

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

发表于:2019-01-03 / 阅读(106) / 评论(0) 分类 VOA2004(下)--健康科技

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(130) / 评论(0) 分类 VOA2004(下)--健康科技

AS IT IS 2014-07-22 NASA to Discover Life in Outer Space 美国国家航空航天局在外太空发现生命 NASA scientists say they are closer than ever to finding life beyond Earth. Several leading NASA scientists spoke to a gathering July 14th at

发表于:2019-01-12 / 阅读(82) / 评论(0) 分类 2014年VOA慢速英语(七)月

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(93) / 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(102) / 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(91) / 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(110) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(101) / 评论(0) 分类 自然百科2012年

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

发表于:2019-01-22 / 阅读(107) / 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(107) / 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(97) / 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(110) / 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(106) / 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(109) / 评论(0) 分类 自然百科2012年

Huygens Spacecraft Arrives at Saturn Moon “慧更斯”号抵达土星卫星 After a seven-year ride to Saturn on the U.S. Cassini spacecraft, the European Space Agency's Huygens probe is finally at

发表于:2019-01-31 / 阅读(147) / 评论(0) 分类 VOA2005(上)--环境科学探索

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

发表于:2019-02-02 / 阅读(118) / 评论(0) 分类 自然百科2012年

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(178) / 评论(0) 分类 实用英语
学英语单词
above-ground silo
acid asphalt
agent for bidding
alkyl azide
ambage
anti-fertilizin
antiseize
any more
auberge
azimuth instrument
azotoflavin
Balloon-A-Gram
bawlings out
Blatthaller loud speaker
bouclier
cardiovasology
Cegrane
centre-hole grinder
cicadidaes
classical set theory
cogn
comparative literatuce
conducive to
contentations
controversial child
core shooting and curing machine
COSRO
de Broglie frequency
decompensation of corneal endothelium
die fill ratio
dorsomedian cellulitis
dynamic leak test
earth orbit rendezvous
emeraud
equipment (eqpt)
ernst boris chains
escaped species
evolved gas detection
Fitz's law
free space wideband transmission
Geltabs
geniculum
genus melolonthas
genus selenarctoss
genus Triplochiton
glibenclamides
Glucosulfatase
glycerophosphatides
go-whole-hog
granulo-adipose
guard hairs
gypsum for building
hand looping
heat-trapping
I.Chem.E.
investment outlay coefficient
left horizontal stabilizer
libicki
line asymmetry
marble flour
mastigomyia gratiosa
measles diphtheroid
metropolitan region
Midgardians
mopuses
motor (rocket)
mould closing
mujaheddin
mulberry wart
naileress
noncheater
normal operation curve
obsign
open registry countries
parallelgram of vectors
passenger-kilometres
phasemass
pre-etching
precipitation clutter
Puccinia limosae
Quincy, Josiah
rain gear
relieve guard
resistance to atmospheric corrosion
retain over
seatrouts
self-fluxing pellet
semirigid packaging material
social-welfare
spoil-heap
squshing
stripping factor
sturnia sturnina
three phase hoist motor
true to ... name
ulterior chartered freight
ultrafiltration reactor
vascular thickening
vitis flexuosa var.parvifolia gagnep
vouchable
water-circulation pump
wooden-stake