White dwarfs are the hot, superdense remnants of spent stars.
白矮星是一种高热度、高密度的晚期恒星。
The fast-spinning star is a pulsar, a superdense chunk of matter left over when a massive star explodes, then collapses in on itself.
这颗快速旋转的恒星是脉冲星,也就是大质量恒星爆炸后经内部坍缩形成的超高密度星体。
Neutrinos are generated in prodigious quantities in stellar explosions known as supernovas, and their ghostliness lets them escape the superdense centre of such an explosion unhindered.