椭圆轨道速度

Possible Earth-Like Planet Next Door? Scientists say they discovered an Earth-like planet orbiting the star closest to our planet other than the Sun. It is the closest planet ever found outside our solar system that could support life as we know it.

发表于:2018-12-16 / 阅读(120) / 评论(0) 分类 2016年VOA慢速英语(九)月

-Lawrence, what a discovery! And I believe I was you who made it. -Yes, I was me and my team. We took a lot of groundbased observing and a lot of modeling, and also it was quite the team that actually made the discovery. I got to lead it, because I'v

发表于:2018-12-20 / 阅读(92) / 评论(0) 分类 CNN2011年(九)月

Hi, laurence, whats a discovery that I believe it was u who made it. Yes, I and my team, we took a lot of ground basic oberserving and a lot of modeling, and also it was quite the team that actually made the discovery. I got to lead it coz I have bee

发表于:2018-12-20 / 阅读(83) / 评论(0) 分类 CNN2011年(九)月

76 years after Pluto's discovery and after 17 years of research and development, Nasa's new Horizon Spacecraft sets out for Pluto. Travelling at around a million miles a day, it's on a 9-year, 700-million-dollar journey to reach Pluto and review its

发表于:2018-12-27 / 阅读(684) / 评论(0) 分类 探索与发现2015年

我们今天学的词是:planet。Planet是行星。不过你听说了吗,太阳系中排行第九的行星冥王星Pluto被降级了。Astronomers' reclassification strips ninth planet of status in solar system. 国际天文学会对行星重新定

发表于:2018-12-30 / 阅读(91) / 评论(0) 分类 英语每日一词

Throw your arms around me, There's no time to be blue, It's the end of the world, Let's talk deep and meaningful things, It's up to you and down to me What's going on? It's you, me and World War Three

发表于:2019-01-03 / 阅读(140) / 评论(0) 分类 奥斯卡电影名曲盛典A

Rob: Hello! Im Rob and this is 6 Minute English. Im joined today byAlice. Hello Alice. Alice: Hi Rob. Rob: Today, were talking about alien life form and who on planet earth wouldaliens speak to if they one day made contact? Alice: Alien life form. Th

发表于:2019-01-07 / 阅读(243) / 评论(0) 分类 六分钟英语

VOICE ONE: I'm Steve Ember. VOICE TWO: And I'm Shirley Griffith with EXPLORATIONS in VOA Special English. This week, we tell about a system of planets orbiting a star called Fifty-Five Cancri. And we hear about a plan to harvest electricity from cro

发表于:2019-01-11 / 阅读(156) / 评论(0) 分类 VOA慢速英语2007年(十二)月

AS IT IS 2016-05-12 NASA Discovers Nearly 1,300 New Planets 美国宇航局发现了将近1300颗新行星 NASA the U.S. space agency said it found nearly 1,300 planets outside our solar system. Nine of the planets are orbiting stars at the distance

发表于:2019-01-12 / 阅读(68) / 评论(0) 分类 2016年VOA慢速英语(五)月

SpaceX Capsule Docks with ISS SpaceX's Dragon capsule made history when it approached the International Space Station, becoming the first private spacecraft ever to do so. The robotic capsule free floated 10 meters away from the orbiting lab, and the

发表于:2019-01-13 / 阅读(89) / 评论(0) 分类 VOA标准英语2012年(五月)

Imagine the disc of our galaxy, if you just took a disc of stars and put it there, gravity would tend to make this disc collapse/ into itself and it would immediately just fall together. That is not what we see with the galaxy. Whats actually going o

发表于:2019-01-22 / 阅读(75) / 评论(0) 分类 自然百科2011年

The amount of debris orbiting the Earth has reached a tipping point for collisions, which would in turn generate more of the debris that threatens astronauts and satellites, according to a US study released on Thursday。 NASA needs a new strategic p

发表于:2019-01-30 / 阅读(84) / 评论(0) 分类 实用英语

Galaxy 银河美国电视中继卫星 Galileo 伽利略美国木星探测器 Gals 航向前苏联国内军政通信卫星 Gambit 策略美国照相侦察卫星 Gamma 伽玛前苏联伽玛射线天文卫星

发表于:2019-02-06 / 阅读(70) / 评论(0) 分类 英文语法词汇

Researchers who studied stars similar to the Sun found that almost one in four could have small, rocky planets just like the Earth。 For their research, scientists spent five years studying 166 Sun-like stars within 80 light year or 470 trillion mil

发表于:2019-02-09 / 阅读(112) / 评论(0) 分类 阅读空间

Have you ever been floating in a swimming pool, all comfy and warm, 你是否曾经浮在游泳池里,感觉非常惬意,暖洋洋得, thinking, Man, it'd be cool to be an astronaut! 想着,天啦,当一名宇航员太爽了! You could fl

发表于:2019-02-13 / 阅读(78) / 评论(0) 分类 TED演讲教育篇

WASHINGTON, Sept. 15 (Xinhua) -- A team of researchers has discovered a planet that orbits around a pair of stars, the U.S. space agency NASA announced Thursday. This is the first instance of astronomers finding direct evidence of a so-called circumb

发表于:2019-02-17 / 阅读(76) / 评论(0) 分类 英语新闻

China's first astronaut says he heard mysterious knocks during his first flight in space - but no one has been able to explain the cause of them. 中国第一名宇航员称其第一次宇宙飞行时听到神秘的敲击声,但没有人能解释原因

发表于:2019-02-17 / 阅读(70) / 评论(0) 分类 英语美文

Artist's conception of the Kepler spacecraft, launched in 2008 to identify planets orbiting distant stars Related Links Kepler The planets we found are all hotter than molten lava. ... Looking at them might be like looking at a blast furnace. Scienti

发表于:2019-02-18 / 阅读(134) / 评论(0) 分类 VOA标准英语2010年(一月)

BEIJING, Nov. 13 (Xinhua) -- China has established an operation committee for management of the country's first space lab module, Tiangong-1, during its two-year orbit of earth. The committee will deal with operations planning, technical appraisal an

发表于:2019-02-18 / 阅读(94) / 评论(0) 分类 英语新闻

我们今天学的词是:planet。Planet是行星。不过你听说了吗,太阳系中排行第九的行星冥王星Pluto被降级了。Astronomers' reclassification strips ninth planet of status in solar system. 国际天文学会对行星重新定

发表于:2019-02-24 / 阅读(145) / 评论(0) 分类 学个词
学英语单词
actinodromous
advanced cabin entertainment and service system (acess)
Aesop
aircraft machine-gun turret
Arjang
armacost
arrangments
arria
audio-frequency harmonic distortion
avogadro's number constant
awakener
axial flooding
blood crystals
body of clavicle
buff grinder
busily
central axial filament
cetane index
clarifying
clear-water
closed flux device
codex alimentarium
corundellite
cost of repair and maintenance
cross-sensory substitution
dactylonomy
data multiplexers
dehybridizes
draughtman
El Quemado
equivalent articulation loss
error in design
errore
family meloidaes
family Peridiniidae
fascial string grafting and anal sphincteroplasty
festiver
first-step mutation
friedans
Garner L.
ground outlet
guadi powder
Gunnawarra
hand-rabbled roaster
hinged end
hydrogen pump
Ibogaine alkaloid
impact of information flow
initial motion
iron(ii) sulfate
jiuji xixian powder
kidbrooke
Kooman's array
lawan
limit of pressure
lithocarpus uvariifolius rehd.
loan secured by mortage
lossless predictive audio compression
marsupites
melillas
message form
midspan load
minimicrophone
mud disposal system
multi-feature telephone
nacm
nematotheca
neutral relay with heavy-duty contacts
Okazaki fragments
on-chip inductor
one-industry
Opisthocomus hoazin
optical bandwidth
pharmacy technician
preliminary program
pulse dial
pulse interval modulation
resonance wave coil
roses of china
rustinesses
sarks
screw rolling
Sealark Fracture Zone
serologies
slethaug
sodium current
spontaneous nystagmus
strontium -barylite
subcategorisations
supply exceeds demand
thanks for your coming
time limit for filling claims
traveling high
Trillekamine
two stage least squares
union nut
Vagabondia
wetness loss
wiener dogs
Wiener ergodic theorem
yoghurts
zimring