英文外刊，科学家发现，极其罕见的大质量恒星爆发事件
Scientists have just en the biggest star explosion obrved to date.
科学家们最近观测到了迄今为止最大的恒星爆炸事件。
Star explosions are often called supernovas.
恒星爆炸通常被称为超新星。
The supernova was up to 100 times larger than our and sun and happened in a galaxy far away.
这颗超新星比太阳大100倍，出现在一个遥远的星系中。
It relead two times as much energy as any star explosion ever ob appened about 4.6 billion light years frorht years from Earth, scientists said.
科学家称,此次超新星释放的能量是观测到的任任何恒星爆炸的两倍，发生在距离地球约46亿光年的地方。
A light year is the distance light travels in one year, which is 9.5 trillion kilometers.
一光年指光一年中传播的距离，即9.5万亿公里。
The scientists said this explosion might reprent a kind of supernova that has only been known in theory until now.
科学家称，这次爆炸可能代表了一种在理论上直到现在才为人所知的超新星。
Matt Nicholl is an astrophysicist with the University of Birmingham in England.
马特尼克尔是英国伯明翰大学的天体物理学家。
He told Reuters news agency that two very large stars - each about 50 times the sun's mass - may have ioinedtjoined to make one huge star.
centra他告诉路透社，两颗非常大的恒星一每颗质量约为太阳的50倍一可能结合形成了一颗巨星。
He thinks this took place about 1,000 years before the explosion.
他认为这发生在爆炸前1000年左右。导演英文
The stars had been part ofa binary system -- two stars pulled toward each other through gravity.
这些恒星曾经是双星系统的一部分一两颗恒星通过引力相互吸引。
The joined star exploded in a supernova that has been named SN2016aps.
剑桥雅思这颗新合成的恒星在一颗被命名为SN2016aps的超新星中爆炸。
We found that the supernova was able to become so brightecau of a powerful collision" between the matter thrown by the explosion and a shell of gas shaken off by the star a few years before, Nicholl explained.
尼克尔解释称:“我们发现超新星之所以能够变得如此明亮，是因为爆炸抛出的物质与几年前恒星释放出的一层气体发生了强烈碰撞。”
He is lead writer of the study published this week in the journal Nature Astronomy.
这项研究于本周发表在《自然天文学》杂志上,尼克尔是首席作者。
Stars die in many dfferent vys, depending on thheir size and other properties.
恒星的死亡方式多种多样，这取决于它们的大小和其他属性。
When a massive star - more than eight times the mass of our sun - us up its fuel, it cools off and its center collaps.
当一颗质量超过太阳8倍的大质量恒星耗尽燃料时， 它会冷却下来，其中心会坍塌。
This launches shocck waves that cau its outer layer to explode so violently that it can shine brighter than whole galaxies.
这个过程会产生冲击波，导致其外层剧烈爆炸，其亮度可能比整个星系还要亮。
The rearchers obrved the explosion for two years until it 1c wered to one percent of its highest brightness.
gals
研究人员对爆炸进行了两年的观察，直到它的亮度降低到最高亮度的1%。
服装分类
They said it may have been an example of an extremely rare "pulsational pair-instability" supernova.
他们表示，这可能是一个极其罕见的"脉动对不稳定性”超新.星的例子。
考研总分多少Peter Blanchard explains what that means.
彼得.布兰查德解释了这意味着什么
He said pulsational parinstbilit is when very large stars experience pulsations which throw material away from the star.
hold up
他表示，脉动对不稳定性是指非常大的恒星经历脉动，将物质从恒星.上抛出。
daretoBlanchard, who co-wrote the study, is an astrophyvsist at Northwestern University in IIlinois.
共同撰写这项研究的布兰查德是伊利诺伊州西北大学的天体物理学家。
He said the discovery shows there are many new and exciting things that remain uncovered in the univer.
他称,这一发现表明，宇宙中还有许多令人兴奋的新事物尚未被发现。
prize
Very masive stars like this one were probably more common early in the univer's history. Nicholl said.
尼克尔表示，像这样的大质量恒星在宇宙早期历史中可能更常见。
"The nature of tho fist stars is one of the big questions in astronomy," Nicholl added.
教师节国旗下讲话“那些最早期恒星的性质是天文学中的大问题之一。克尔补充道。
"Seeing things further away means looking back further and further in time.
“对事物探究得更深意味着回溯到越来越久远。
So we might acually be able to e the very first stars ifthey explode in a similar manner to this one. Now we know what to look for."
因此，如果最早期恒星爆炸的方式和这一颗相似的话，我们也许真的能看到它们。现在我们知道要找什么了。”
