单词supernova
n.: 【天】超新星
网络: 超时空危机；超级新星；超新星爆发
超新星:
a star that suddenly becomes much brighter because it is exploding
【天】超新星
复数：supernovas
It indicates that the supernova explosion took place in the complicated and dense environment of a star-forming region.
这幅图片表明，这个超新星爆发是在恒星形成区内部繁杂密集的环境当中发生的。
It was the first opportunity for modern astronomers to see a supernova up close.
这还是近代天文学家第一次如此近距离的观测到超新星。
It would be a bit like experiencing a supernova explosion, but at point-blank range and for millions of years at a time.
这可能有点像经历一次超新星爆炸，但是是在零距离接触并且将数百万年的能量集中到同一时间爆发。
Some supernova researchers wondered if it might be just a nine-day wonder.
有些超新星研究者怀疑，这可能只是昙花一现。
Known as a Wolf-Rayet star, the central star is an extremely hot giant thought to be in a brief, pre-supernova stage of evolution.
被称为沃尔夫-拉叶型星，中央恒星是一颗极热的巨星，被认为处于短暂的前超新星阶段。
The energy of a supernova explosion is essentially equal to all of the energy that the sun will put out in its 10-billion-year lifetime.
超新星爆炸的能量基本上相当于太阳在其一百亿年的生命中释放出的所有能量。
At least one earlier supernova must have provided the early star with its tiny percentage of heavy elements.
至少有一颗先前存在的超新星为这颗原恒星提供了极少量的重金属。
No one is sure, but it might be a speeding remnant of a powerful supernova that was unexpectedly lopsided.
没人确定，也许是急速运动的意外不平衡的强大超新星的遗迹。
About 5 light-years long and a mere 800 light-years away, the Pencil Nebula is only a small part of the Vela supernova remnant.
约5光年长，仅800光年远，铅笔星云是船帆座超新星残骸的一小部分。
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。