But unlike light, which deposits all its energy when it splats against matter, gravity passes ghostlike through solid objects with only a tingle of interaction.

• 问题其实在于，重力波与物质之间的交互作用非常微弱，所以重力波会像鬼魅似地穿过实际物体，而不像光子会把能量全部塞给它所撞上的物体。