Koll says this iron-60 might be showering down on us from the Local Interstellar Cloud, the patch of space the solar system is moving through right now.

科尔表示，同位素铁-60可能正从太阳系正在穿越的本地星际云中向我们倾泻而下。

The rhythm of the hoof-beats, the recurrent low whistle and crack of the whiplash, the occasional rattle of pebbles showering down to the depths, loosened by rioting wheels, have broken the sacred silence.

马蹄声的节奏、反复低沉的哨声和鞭打的噼啪声、鹅卵石偶尔掉落到深处的嘎嘎声、被骚乱的车轮松动的声音，打破了神圣的寂静。