中文翻譯:
在遙遠的宇宙中，有兩個神秘的黑洞在一起跳舞！人們聽不到它們的聲音，因為聲音在空氣中傳播，但黑洞卻能發出特殊的重力波。2015年，科學家們第一次「聽到」這些波動，證明了愛因斯坦的理論是正確的。研究人員發現，當兩個黑洞互相圍繞時，它們的運動像音樂般美妙，會發出越來越高的音調，這被稱為「啁啾」。雖然星星和中子星的數量比黑洞多，但我們卻常常偵測到黑洞的合併事件，因為黑洞非常重，發出的信號也更響亮，可以讓我們在很遠的地方聽到它們的故事。雖然這些事件在我們的銀河系中非常稀少，但在宇宙的每一個角落，它們都在持續發生，像是一場宇宙的音樂會！
原文:
What is the sound of two black holes merging in deep space? Sound waves don’t propagate in vacuum, but gravitational waves do. In 2015 we were able to “hear” them for the first time and confirm one of Albert Einstein’s theoretical predictions. Each square on the grid of the featured image represents one of the gravitational wave detections announced so far by the LIGO-VIRGO-KAGRA Collaboration. These plots show how the binary pair accelerates in their orbit around each other towards merger: the rising frequency effect is called a “chirp”. Although there are significantly more neutron stars than black holes, most of the detections are binary black hole mergers. That happens because black holes are heavier and their signals are louder and can be seen farther away, resulting in more detections. These events are rare, and we don’t expect to see one close by in our Galaxy any time soon. But they are happening continuously throughout the cosmos.
來源:NASA每日圖片
