Ambitious future observers might also send out probes that escape the supergalaxy and could serve as reference points for detecting a possible cosmic expansion.
有企图心的未来观测者，或许会发射一些能够脱离超级星系的探测器，做为侦测宇宙膨胀的参考点。
Cosmic expansion
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科拉诺斯动画科普
Meanwhile, a period of rapid cosmic expansion may allow humans to finally visit other planets and moons.
与此同时，一段快速的宇宙膨胀期可能会让人类最终造访其他行星和卫星。
自然杂志：天文学
By discounting cosmic expansion, the team worked out which galaxies are being pulled towards us (shown in blue) and which are being pulled away (shown in red).
通过不考虑宇宙膨胀，该团队计算出哪些星系被拉向我们（以蓝色显示），哪些星系被拉开（以红色显示）。
英语百科
Metric expansion of space
（重定向自Cosmic expansion）
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The metric expansion of space is the increase of the distance between two distant parts of the universe with time. It is an intrinsic expansion whereby the scale of space itself changes. This is different from other examples of expansions and explosions in that, as far as observations can ascertain, it is a property of the entirety of the universe rather than a phenomenon that can be contained and observed from the outside.
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