中子星：定义和事实

中子星是城市大小的星体，其质量约为太阳的1.4倍。来自另一颗更大的恒星的爆炸性死亡。

Neutron stars are city-size stellar objects with a mass about 1.4 times that of the sun. Born from the explosive death of another, larger stars, these tiny objects pack quite a punch.

Neutron Stars: Definition & Facts

https://www.space.com/22180-neutron-stars.html