A simulation of early galaxy formation under three dark matter scenarios. cold dark matter: early galaxies would 1st form in bright halos (far left). If warm, galaxies would form 1st in long, tail-like filaments (center). Fuzzy one would produce similar filaments, though striated (far right). via /r/spaceporn https://ift.tt/30NvXyT
via Tumblr https://ift.tt/2LM2NvO
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