1. Universe – Everything that exists.
Galaxy Superclusters – Largest structures; Hercules–Corona Borealis Great Wall spans 10 billion light-years.
Galaxies – Massive star systems; IC 1101 is one of the biggest.
Stars – UY Scuti is about 1,700 times the Sun’s size.
5. Black Holes – TON 618 has 66 billion solar masses.
Planets – Jupiter is the largest in our solar system.
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