Brain BoutBrainBout

@realBrainBout @Level-1
Why should galaxy collisions have been more common in the past than they are today?
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Brain BoutBrainBout

@realBrainBout @Level-1
Why should galaxy collisions have been more common in the past than they are today?
Game Media
The expansion of space is a different kind of expansion than the expansions and explosions experienced in daily life. "It is an intrinsic expansion whereby the scale of space itself changes". See references for more detail.
1) astro.washington.edu 2) Wikipedia contributors. "Expansion of the universe." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 25 Jul. 2018. Web. 17 Aug. 2018.
  • Astronomy