时间:2019-01-19 作者:英语课 分类:CNN美国有线新闻2017年3月


英语课

 


Yesterday, astronomers 1 announced that they’ve discovered seven Earth-sized planets all orbiting the same star. The findings were published in a journal "Nature". NASA says this is a record number of these kinds of planets orbiting this kind of star. It also believes that three of the planets are in what’s called the habitable zone. Scientists define that as the space around the star where a planet is most likely to have water.


昨日,天文学家宣布发现了有7个类似与地球大小的行星在围绕这同样的恒星运动。该研究结果发表在《自然》杂志上。美国宇航局表示,该数字刷新了围绕同一恒星转动的行星数量的记录。同时,有三个行星在处于所谓的“宜居区”。科学家认为该恒星周围的恒星上最可能有水。


This isn’t exactly in our neighborhood. They say the star is 40 light years away and it’d take a human spacecraft millions of years to get there.


但是它们并不是我们人类的邻居。科学家表示,这个恒星距离与地球的距离为40光年。人类乘坐宇宙飞船需要数万的时间才能够到达。


So, how did researchers identify planet at that distance? Well, examining stars with the telescope based in Chile, they saw shadows occasionally interrupting the star light. They say that these shadows indicated that planets were passing between the telescope and the star, like eclipses.


那么科学家是如何判定行星的距离呢?通过位于智利观察恒星的天文望远镜,科学家发现不时会有阴影挡住这个恒星发出的光。科学家表示,,这些阴影表明行星通过望远镜和恒星,就如同日食现象一样。


What they’re hoping to do in the future is determine the planet’s atmosphere and whether they really have liquid water.


科学家希望在未来可以确定该恒星的大气成分以及是否真的有液态水。



n.天文学者,天文学家( astronomer的名词复数 )
  • Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
  • Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪,为什么只有土星有光环。 来自《简明英汉词典》
学英语单词
alpha-proton reaction
alpinia officinarum
alterna-
answer-back signal
archimimes
Arequipite
as like as chalk to cheese
autonomous amplitude limiter
autoregressive deconvolution
avantgardistic
benzhydryl amine
Bermudian rig
bertalanffies
biennial bearing
bitser
blue tulips
Booth, Edwin (Thomas)
brass instrument
bus-fare
casting surface
cherogrils
Chinese lexicology
CORDAT
craplets
critical melting point
descended upon
DIS/SEC
ephedine
epidermolysis acquisita
ethenylene
Ferospace
fibre optic memory
film disk
floating sludge
flobber
fluorocomplex
free-response
gamed
gastrostyle
good wishes
Gr. S.
gradient projection method
graduates
hemochromatosis
hunting-cat
hydroxy-malonic acid
hyperboloidal mirror
industrially advanced country
Kirovskaya
Lytton, Edward George Earle Lytton Bulwer-,lst Baron Lytton
manograph
Mansonia annulatus
mid ordinate
miediling
modulation formats
native vermilion
onerari non debet
orizio
part-time bowler
peltate tentacle
pigeonhole principle
point-contact
polychromism
postboat
preemulsion
primary tentacle
promote the sale of products
Pueblan
rail loading machine
renal fibroid sarcoma
rescue cutter
rich chromium ball bearing steel wire
rio bravoes
rogueish
Sarcosperma arboreum
scientific notation
search frequency generator
second reserve
signal instructions
smart structure technology
sodium dodecylsulfate
spelye
square normal closed double head wrench
steam-powers
steering engine valve
subnuclear particle
subsizar
Syringa julianae
tarsal pulvilli
text-understanding
twin-cams
unnarratable
uova
vacuum diffusion pump
valley girls
varitypers
Villiers
vinylcarbenoids
vizament
walruslike
Web Pad
withametelins