For the first time ever, a black hole has been seen being born out of a supernova of a star perhaps 20 times the mass of our sun.
有史以来，人类第一次观察到了一个黑洞的诞生，它生成自一颗约是太阳质量20倍恒星的超新星爆炸中。
The cycle can repeat itself in pulses—astronomers call this case a “pulsational” pair-instability supernova—until the star loses enough mass to end its life in an ordinary supernova.
这个过程可能周而复始，周期性地重复--天文学家称之为"脉动"对不稳定性超新星--直至恒星失去足够的物质，在普通超新星的形态中走到生命的尽头。
Supernova remnants play an important role in stellar evolution by enriching space with heavy elements, and triggering new star formation by compressing interstellar gas.
超新星残骸以重元素填充宇宙空间，压缩星际气体促进新恒星的形成，因而在星体演化过程中扮演重要角色。
The only explanation Dr Clark can think of is that the star must have somehow shed nine-tenths of its mass before it exploded as a supernova.
克拉克博士想到的唯一解释是这颗恒星在爆炸成超新星之前可能减少了十分之九的质量。
After the supernova, the leftover matter could either have collapsed into a black hole or an extremely dense neutron star.
超新星爆发以后，剩余的物质可能塌缩为一个黑洞，也可能形成一颗密度极大的中子星。
Can you find, in the above image, a comet, a spiral galaxy, an open star cluster, and a supernova remnant?
在上面图中，你能找到：一彗星，一旋涡星系，一疏散星团和一超新星遗迹吗？
The white source near the center of the image is a dense, rapidly rotating neutron star, or pulsar, all that remains of a core-collapse supernova explosion.
图片靠近中心部分的白色光源为一种密度大，急速旋转的中子星，或是脉冲星--都是核心坍缩的超新星爆炸的残留物。
The nebula is a large supernova remnant, an expanding cloud born of the death explosion of a massive star.
该星云是超新星的遗迹，是一个大质量的恒星死亡爆炸时的扩散云气形成的。
When a blue giant star in the Tarantula region went supernova, seen on the night of February 23, 1987, it captured the attention of astronomers worldwide.
1987年2月23日晚，当蜘蛛星云区域内的一颗蓝巨星被观测到已成了超新星时，它引起全世界天文学家的关注。
In fact, the cosmic jellyfish is seen to be part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded.
这个宇宙级水母被看作是泡泡状的超新星遗迹IC 443的一部分。 超新星遗迹是大质量恒星爆发时向外扩张的碎片云。
The girl from the Canadian province of New Brunswick is the youngest person ever to discover a supernova, an exploding star.
这位来自加拿大新不伦瑞克省的女孩成为了史上最年轻的超新星——爆炸中的恒星——的发现者。
The companion star had apparently survived the original supernova explosion that created the black hole.
图中这颗伴星显然从创造黑洞的超新星爆发中幸存下来。
The cores of these stars collapse, leading to a violent supernova explosion where the outer layers of the star are expelled into space.
这些恒星的核心部分塌缩导致剧烈的超新星爆发，恒星的外层物质被抛向宇宙空间。
The star then explodes in a so-called Type II supernova.
这颗恒星随后发生爆炸，成为II型超新星。
A pulsar is not a normal star, but a dense, rapidly spinning remnant of a supernova explosion.
脉冲星并不是一种正常的恒星，它是超新星爆炸后留下的高密度快速旋转的残余部分。
The recent star formation itself was likely triggered by winds and supernova explosions, from previous generations of massive stars, that swept up and compressed the molecular gas.
近期的恒星形成本身似乎由星风和超新星爆发触发，来自前代大质量恒星，清除和压缩了分子气体。
This burst is enough to toss off the outer layers of the star but not enough to create a full supernova.
这个爆炸足以吞噬恒星的整个外层，却不足以生成一个超新星。
Future fireworks are forthcoming, for the star will someday explode as a supernova.
这颗恒星总有一天会爆炸成为超新星，未来即将在这里看到更美的空中烟火。
That birth date is in April 1979, when the supernova explosion that signaled the collapse of the star was spotted flaring brightly in the M-100 galaxy by a school teacher using a telescope.
该出生日期是1979年4月，当时一位学校老师用望远镜发现了发出恒星塌陷信号的超新星爆炸，因为在M- 100星系那里有明亮的光亮。
Most scientists agree a Type 1a supernova occurs when a White Dwarf star — a collapsed remnant of an elderly star — exceeds its weight limit, becomes unstable and explodes.
大多数科学家认为，当白矮星(年老恒星坍缩而成的残骸)超过质量极限，变得不稳定并爆发的时候，会产生Ia型超新星。
The youngest known neutron star in the Milky Way, Cas a was born in a supernova explosion that astronomers may have spotted 330 years ago.
作为银河系中已知的最年轻的中子星，Cas a诞生于330年前天文学家可能观测到的一次超新星爆发中。
Cepheids are a special type of star that pulsates in a predictable way, and like the type 1a supernova, they are assumed to be the same, no matter where they are located.
造父是种特殊的恒星，它能以可以预测的方式周期脉动，就像I型超新星，他们被当做是一样的，不管他们在那里。
It is an explosion of an old compact star that is as heavy as the Sun but as small as the Earth. A single such supernova can emit as much light as a whole galaxy.
Ia型超新星是由像太阳一样重却像地球一样小的致密星爆炸而成，这样一颗超新星所发射出的光和整个银河系一样多。
When a large star has burnt all its fuel it explodes into a supernova.
一颗很大的恒星烧尽它的燃料后，就爆炸成超新星。
This is a supernova, which when seen from Earth, appears as a bright new star in a place where none (or only a very faint star) appeared to be before.
这就是超新星，从地球上看原本没有星星(者是一颗很黯淡的星)地方出现了一个明亮的新星。
If confirmed, studies of the newfound supernova could have major implications for computer models of star formation in the early universe, Nugent said.
如果得到证实，新发现的超新星的研究可以在早期宇宙中的恒星形成重大影响的计算机模型，纽金特说。
Some people think that the Star of Bethlehem could have been a supernova.
一些人认为圣诞星是一颗超新星。
Some people think that the Star of Bethlehem could have been a supernova.
一些人认为圣诞星是一颗超新星。
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