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
agroclimatic regionalization
anonymous class
anything of the kind
Asterozoa
balance beams
bespotted
bhag-
Bizen
blowland
bost
breadth of oral fissure
brygeless
bulge forming
Canada Company
Carib.
cataleptical
cathects
central(ized) oiling
chemistry of Jovian satellites
chih-yuen
consciousness-raisers
conservation of resources
course again
crossing out
cruising stages
cryofixation
cyphonism
daima
degradator
demonstration equipment
dispossessions
Eichhornia spesiosa
esiason
Eurafrican
extrusion casting
Fazao, Mts.
frag
free ash
gaming-houses
Gerar
gesture recognition
get ... right
glycerol monostearate
Goodenough-Harries Drawing Test
hands off speed
harmful drinker
hourly rate option
hypertextualizes
indent goods
javelined
joint-junction box
kilomega cycle
lethal dose 50
lightwood's syndrome
linertrain
Loran-C locator
loss limit
matesy
metal fabric
mixed structure
modify instruction
modulation instability
Moll gland
no-pressure
off-sale
on points
on-load voltage regulator
Orleaes
oximete
petrified tree
photochromogen
physarum rigidum
play footsie s with
point symmetry group
preemployment activities
program logic array
projected mean length
radiographic emulsion
rated oil pressure
reference style
refloored
resinites
Rhynchites giganteus
right rudder
scorchmark
shit bowl
sinhalite
sleep-safe
snapring
spiroplectammina taiwanica
tracker
traffic filter
tribasic acid
trochilics
trollicious
turbine flow transducer
ultrasonic grinding
under-compensated meter
valeriano
when it rains it pours
wires cross
xenon poisoning