superdense

If the incoming projectile were a white dwarf—a superdense star that packs the mass of the sun into a body a hundredth the size—the residents of Earth would be treated to quite a fireworks show.

如果接近的天体是一颗白矮星（whitedwarfstar，一种超密恒星，质量约等同于太，体积却不到太的百万分之一），麽地球上的居民将可以看到一的烟火秀。