渐入黑夜:未来的夜空 [幻灯片]

随着我们的银河系与其邻居合并,以及遥远的星系超出视线范围,地球上的夜空(假设它能幸存)将发生巨大变化。

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随着我们的银河系与其邻居合并,以及遥远的星系超出视线范围,地球上的夜空(假设它能幸存)将发生巨大变化。

加速膨胀最终将使星系分离的速度比光速还快,导致它们超出视线范围。这个过程消除了测量膨胀的参考点,并将大爆炸的独特产物稀释至虚无。简而言之,它抹去了大爆炸曾经发生的所有迹象。

对于我们遥远的后代来说,宇宙看起来就像无尽的、不变的虚空中的一小片星辰。


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点击此处查看夜空演变的幻灯片。

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 大众科学 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.

More by Robert J. Scherrer
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