Our universe is filled with floating nebulae, spinning planets and black holes. But if we closed our eyes and listened, what would these celestial objects sound like? Would we hear a faint whoosh? Or a low hum?
In actuality, if you went to outer space, you probably won't hear very much at all. "There is that popular saying that 'no one can hear you scream in space' for a reason," Kimberly Arcand, a visualization scientist for NASA's Chandra X-ray Observatory, told Live Science. "The nature of space is sort of silent."
