时间:2019-02-06 作者:英语课 分类:英语新闻


英语课

   BEIJING, Oct. 26 (Xinhuanet) -- The question, why the first documented supernova was super-sized and grew so fast, has puzzled astronomers 2 for centuries. Now it is solved by US researchers.


  The supernova, an exploded star, was observed in 185 A.D. and documented as a mysterious "guest star" by Chinese astronomers. It was visible for eight months.
  Scientists later found the supernova, 8,000 light years away, was a bigger-than-expected supernova remnant. BBC reported that if the infrared 3 light it emits could be seen by human eyes, it would appear to be as large as the full Moon in the sky.
  Through observations in space telescopes, researchers of a latest study revealed that the explosion took place in a cavity in space, which allowed the star's remains 4 to travel out much faster and farther. The study was published online in the Astrophysical Journal Monday.
  The supernova was "two to three times bigger than we would expect for a supernova that was witnessed exploding nearly 2,000 years ago. Now, we've been able to finally pinpoint 5 the cause," stated Brian Williams, lead author of the study and an astronomer 1 at North Carolina State University in Raleigh.

n.天文学家
  • A new star attracted the notice of the astronomer.新发现的一颗星引起了那位天文学家的注意。
  • He is reputed to have been a good astronomer.他以一个优秀的天文学者闻名于世。
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》
adj./n.红外线(的)
  • Infrared is widely used in industry and medical science.红外线广泛应用于工业和医学科学。
  • Infrared radiation has wavelengths longer than those of visible light.红外辐射的波长比可见光的波长长。
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
vt.准确地确定;用针标出…的精确位置
  • It is difficult to pinpoint when water problems of the modern age began.很难准确地指出,现代用水的问题是什么时候出现的。
  • I could pinpoint his precise location on a map.我能在地图上指明他的准确位置。
标签: mystery year
学英语单词
-stim
a dart
a snap
account sales ledger
ash cat
balanced weight lever
Battle Born State
baucuss
bdfp
be broad awake
bind someone over to do something
cane weighting scale
ce-
center of glaciation
chemical drain tank pump
chicken hawks
churns
current with revolving base
desulfurization printing
device number
diedres
dismantling device
dissimilative
distorted lattice
double amplitude
Dötlingen
ecocritical
elberfelds
Factoryville
family Bucerotidae
featurectomy
first moments
fix the cards against someone
flavorsomeness
foreign currency bills bought
former plate
gamma-ray burster
giesen
gotten to know
greenjeans
grinding roller
hability
hot gas multi-stage booster
in the outset
infantile malaria
infected pulmonary aneurysm
kirtana
labium vestibulare cochleae
licensed victuallers
Manganese Shale Group
masked diffusion
most-favo(u)red-nation treatment
nationless
nervi tensoris tympani
net disbursement
nitrosohaemoglobin
no-brainer
non-normative
nonbanker's credit
off-course alarm
oidium cephalanthi
oriented adsorption
original characters
ortho-titanic acid
Papafjördhur
parries
pfaffs
phenate butyl
phleegmatic temperament
phytography
pile up the rocks
potassium gluconate
prednidolone
princess grace of monacoes
productive poll
program coding
protympanum
Punta de Vacas
purchase on installment
quillaja
rat-trap cheese
saddoes
Salingyi
salt-cat
self-orthogonal
single tuned amplifier
slagging combustion chamber
spreadertrailer
swine-sty
sympneuma
Tembuland
Termination of Salvage Operation
tremulation
true metacenter
Ubuntu One
update access
vertical-type evaporator
viscerosensory organs
weight of equipment
wheel facewidth
wood lock
xenopodidaes