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當(dāng)?shù)貢r(shí)間8月22日，美國(guó)國(guó)家航空航天局發(fā)布了一段音頻片段，聲音是由2億光年外的英仙座黑洞的壓力波而合成的。不少美國(guó)網(wǎng)友表示聽(tīng)完覺(jué)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在社交媒體上發(fā)文稱(chēng)：“太空中沒(méi)有聲音的誤解源于大多數(shù)空間是真空，無(wú)法讓聲波傳播。”但天文學(xué)家發(fā)現(xiàn)，事實(shí)上，星系團(tuán)存在大量氣體，黑洞發(fā)出的壓力波能在星團(tuán)中引起漣漪。 據(jù)報(bào)道，這段音波來(lái)自美國(guó)宇航局的錢(qián)德拉X射線(xiàn)天文臺(tái)。 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.
天文學(xué)家表示，黑洞中的聲音大約在中央C以下57個(gè)八度音階，人耳無(wú)法聽(tīng)到。美國(guó)國(guó)家航空航天局通過(guò)音頻技術(shù)提升波形頻率，從而使人們能夠聽(tīng)到黑洞的聲音。
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