早在1054年，中国和阿拉伯天文学家就有关于它是超新星残余的记载。
It is the remnant of a supernova that was recorded by Chinese and Arab astronomers in 1054.
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。
A pulsar is not a normal star, but a dense, rapidly spinning remnant of a supernova explosion.
在经历超新星后，假如剩下的残核小于三个太阳质量，爆炸的残余物质就将可能演变成旋转着的中子团。
Immediately after supernova, if the remnant core has a mass of less than three SUNS, one would expect a blob of degenerate neutron matter to be spinning in the explosion's wake.
和一般残骸不同，中子星是以超新星方式爆炸的巨大星球的残余核心部分。
Not just any old relics, neutron stars are the leftover cores of huge stars that exploded in supernovae.
这些残余物已经从超新星爆炸的原始地向外膨胀了大约55光年，目前这颗超新星是距离我们的太阳最近的一颗超新星。
This remnant has expanded about 55 light-years from where its supernova exploded, and is one of the closest to our sun.
这些残余物已经从超新星爆炸的原始地向外膨胀了大约55光年，目前这颗超新星是距离我们的太阳最近的一颗超新星。
This remnant has expanded about 55 light-years from where its supernova exploded, and is one of the closest to our sun.
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