Last, the existence of hidden particles identical to ours would have affected cosmicexpansion; compositional measurements rule that out.
原因之三，如果有类似于我们世界的隐性粒子的存在，它们将影响宇宙膨胀，多种观测都证明这一点。
2
Ambitious future observers might also send out probes that escape the supergalaxy and could serve as reference points for detecting a possible cosmicexpansion.
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。
3
Although the accelerating cosmicexpansion came as a surprise to astronomers, its discovery provided an essential ingredient in what has become the prevailing cosmological model.