漸入黑夜:未來的夜空 [幻燈片]

隨著我們的銀河系與其鄰居合併,以及遙遠的星系超出視線範圍,地球上的夜空(假設它能倖存)將發生巨大變化。

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隨著我們的銀河系與其鄰居合併,以及遙遠的星系超出視線範圍,地球上的夜空(假設它能倖存)將發生巨大變化。

加速膨脹最終將使星系分離的速度比光速還快,導致它們超出視線範圍。這個過程消除了測量膨脹的參考點,並將大爆炸的獨特產物稀釋至虛無。簡而言之,它抹去了大爆炸曾經發生的所有跡象。

對於我們遙遠的後代來說,宇宙看起來就像無盡的、不變的虛空中的一小片星辰。


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點選此處檢視夜空演變的幻燈片。

Lawrence M. Krauss is Foundation Professor in the School of Earth and Space Exploration and the physics department and inaugural director of the Origins Project at Arizona State University. Author of several popular books and commentaries for national publications, radio and TV, he also lectures widely on science and public policy. Krauss has the unique distinction of having received the highest awards from all three U.S. physics societies. In his spare time, he has performed The Planets with the Cleveland Orchestra and served as a Sundance Film Festival judge. He has written many articles and columns for 大眾科學 and serves on its board of advisers.

More by Lawrence M. Krauss

Robert J. Scherrer is a professor of physics and astronomy at Vanderbilt University.

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