当地时间8月22日,美国国家航空航天局发布了一段音频片段,声音是由2亿光年外的英仙座黑洞的压力波而合成的。不少美国网友表示听完觉得毛骨悚然。
What does a black hole sound like? Both "creepy" and "ethereally beautiful", according to people who've listened to an audio clip posted on Twitter by NASA.

The US space agency tweeted what it called a remixed sonification of the black hole at the center of a galaxy cluster known as Perseus, which lies about 240 million light-years away from Earth. The sound waves identified there nearly two decades ago were "extracted and made audible" for the first time this year, according to NASA.
NASA在社交媒体上发文称:“太空中没有声音的误解源于大多数空间是真空,无法让声波传播。”但天文学家发现,事实上,星系团存在大量气体,黑洞发出的压力波能在星团中引起涟漪。
据报道,这段音波来自美国宇航局的钱德拉X射线天文台。
The 34-second clip set social media ablaze, with many people gobsmacked that anything, let alone what sounds like an eerie, guttural moan, could escape a black hole.
But the idea that there is no sound in space is actually a "popular misconception", the agency said. While most of space is a vacuum, with no medium for sound waves to travel through, a galaxy cluster "has copious amounts of gas that envelop the hundreds or even thousands of galaxies within it, providing a medium for the sound waves to travel," it explained.
天文学家表示,黑洞中的声音大约在中央C以下57个八度音阶,人耳无法听到。美国国家航空航天局通过音频技术提升波形频率,从而使人们能够听到黑洞的声音。
厦门日报社微信矩阵
来源:华盛顿邮报、中国日报
继续阅读
阅读原文