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

天体是一颗白矮星(whitedwarfstar,一种超密恒星,质量约等同于太
,但其体积却不到太
百万分之一),那麽地球上


可以看到一场壮丽
烟火秀。


和
型编排活动
括盛
说英语
才安静下来。


