『100 Sleepy Facts About Cosmic Voids _ The Quietest Places in the Universe』のカバーアート

100 Sleepy Facts About Cosmic Voids _ The Quietest Places in the Universe

100 Sleepy Facts About Cosmic Voids _ The Quietest Places in the Universe

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🌌 "They are the silent, empty spaces between the stars, where the cosmic web stretches thin and the universe holds its breath. Cosmic voids are the true quiet places."

In the vast foam-like structure of the universe, the spongy spaces between galaxy filaments are called cosmic voids [citation:3]. These enormous, roughly spherical regions can span 30 to 300 million light-years and contain less than 10% of the average matter density [citation:1][citation:3]. Our own galaxy sits on the edge of a "Local Void" [citation:6]. It is in these dark, open areas that the expansion of the universe is most dominant, making them key to understanding dark energy and the laws of gravity [citation:1][citation:9]. Let these quiet, empty facts carry you into deep, peaceful sleep.

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