CNNのインスタグラム(cnn) - 6月29日 19時31分

Astronomers have been able to "hear" the celestial hum of powerful gravitational waves, created by collisions between black holes, echoing across the universe for the first time.

Their observations reveal that the waves -- including some that slowly undulate as they pass through our Milky Way galaxy -- occur at different frequencies and oscillate for decades.

The discovery could help scientists better understand cosmic phenomena like supermassive black holes and how often galaxies merge.

📸 : Keyi "Onyx" Li/U.S. National

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