See the sky’s best galaxy groups: This Week in Astronomy with Dave Eicher

We often think of galaxies either as individual “island universes” or as a member of a galaxy cluster. But there is another category of association: galaxy groups. Many galaxies — perhaps most in the local universe — are part of a galaxy group. Our own Milky Way is part of such a group: the LocalContinue reading “See the sky’s best galaxy groups: This Week in Astronomy with Dave Eicher”
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