supergalaxy
1. 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。
2. local supergalaxy
本超星系