Expanded local superclusters region

Details

This map shows the universe within a radius of 1 billion light-years of Earth, highlighting nearby superclusters and the broader web-like arrangement of galaxies in our surrounding cosmic volume. It represents a much larger neighborhood than the nearer local supercluster maps and includes tens of millions of galaxies.

This record is not a single object in space. It is a map of a much larger cosmic neighborhood, showing the universe within about 1 billion light-years of Earth as a connected landscape of superclusters, filaments, and voids. At this scale, the universe becomes harder to think of as a list of named objects and easier to understand as a broad architecture of linked structures.

What makes this expanded map valuable is that it shows continuity. The same cosmic web visible in smaller neighborhood maps does not disappear as the view widens. Instead, it becomes even more legible: denser strands, larger empty regions, and a bigger sense of how our local structures fit into a much wider pattern. The point is not that this region is one neatly bounded thing. The point is that cosmic structure remains organized even when the view becomes enormous.

That is why the expanded local superclusters region matters. It gives users a bridge between familiar nearby superclusters and the far larger map of the observable universe. By treating this scale as a represented neighborhood rather than a single object, the story stays honest while still showing how quickly cosmic geography grows beyond intuitive human scale.

743million ly
Visual creditBased on work by Richard Powell / CC BY-SA 2.5Source: Wikimedia Commons

Key facts

Category
Large-scale structures
Object class
Large-scale cosmic neighborhood
Scale fact
2 billion lydiameter of mapped region
Composition
~63 million galaxies, galaxy superclusters, filaments, voids, dark matter, intergalactic gas

Scale context

Where Expanded local superclusters region sits on the full axis

By size on the journey, Expanded local superclusters region sits between Local superclusters region and Observable Universe. The band below compares Expanded local superclusters region with nearby Large-scale cosmic neighborhood objects so the size jump stays easy to read.

Shared physical scale
1.30billion ly

Together, these objects make the size change around Expanded local superclusters region easy to compare at a glance.

Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

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