I map the vast unseen, connecting islands of light through filaments stretched across infinite darkness. What am I?

Category: Science · Difficulty: expert

Hint: Consider how galaxies and matter arrange themselves on the grandest scales.

Answer

The large-scale structure of the universe

Explanation

The universe's large-scale structure consists of galaxy clusters and filaments forming a cosmic web spanning vast distances.

This is a expert science riddle — one of the harder riddles here. The answer is The large-scale structure of the universe.

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