The discovery of these bite-sized galaxy clusters provides a key piece of evidence for how galaxies evolve — and how dark matter might be in the middle of it all.
from Space.com bit.ly/2j2BDUF
The discovery of these bite-sized galaxy clusters provides a key piece of evidence for how galaxies evolve — and how dark matter might be in the middle of it all.
from Space.com bit.ly/2j2BDUF
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