white hole

White holes, proposed as time-reversed solutions of black holes in general relativity, are theoretically capable of emitting large amounts of matter and energy. However, observational confirmation remains elusive. This paper presents a speculative hypothesis: that the interstellar dust widely distributed across the universe—referred to here as “cosmic powder”—may originate from white hole ejection events. After ejection, the material could be gravitationally scattered by nearby celestial bodies, resulting in a highly diffuse distribution and making its origin untraceable. We examine the plausibility of this hypothesis and discuss whether current observational data on cosmic dust distribution may provide indirect support, thereby contributing a novel perspective to the study of extreme cosmic events.