How are galaxies clusters and superclusters different?

Related questions

• What is the Large Magellanic Cloud?
• What are Magellanic clouds? How were they discovered?
• Are galaxies visible in the night sky?
• How were the Magellanic clouds formed?
• What are the Magellanic clouds composed of?
• What are accretion disks?
• How do the basic galaxy types differ in shape, stellar content, and interstellar matter?
• Did the bulge or disk of the galaxy form first? How is this determined?
• Why does the Milky Way Galaxy's nuclear bulge contain many red giants and supergiants as opposed...
• What is a galaxy's bulge?