Local superclusters region size and scale context

This map shows the large-scale cosmic neighborhood within a radius of 500 million light-years around the Milky Way. Instead of a single object, it represents the nearby network of galaxy superclusters, filaments, and voids that make up our local portion of the cosmic web. Read its scale context, comparisons, and journey links on the canonical object page.

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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.

Editorial

Solar System Planets From Electron to Atoms Stars To Scale Birth And Death Of Stars Black Holes To Scale

Views

Planets of the Solar System Stars of the Universe Black holes Subatomic scale

Return to Earth hello@scaleofspace.org

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.

Editorial

Solar System Planets From Electron to Atoms Stars To Scale Birth And Death Of Stars Black Holes To Scale

Views

Planets of the Solar System Stars of the Universe Black holes Subatomic scale

Return to Earth hello@scaleofspace.org

Galaxy superclusters

Laniakea Supercluster

Laniakea is the immense supercluster region that includes the Local Group, the Virgo Cluster, and the Great Attractor. Its boundaries are defined less by a sharp visible edge than by the way galaxies flow through space, like matter draining into the same cosmic basin.

Scale fact500 million lyextent

Object class: Galaxy supercluster
Composition: ~100,000 galaxies, galaxy groups and clusters, hot intergalactic gas, dark matter

Large-scale structures

Local superclusters region

Scale fact1 billion lydiameter of mapped region

Object class: Large-scale cosmic neighborhood
Composition: Galaxy superclusters, filaments, voids, galaxies, dark matter, intergalactic gas

Large-scale structures

Expanded local superclusters region

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.

Scale fact2 billion lydiameter of mapped region

Object class: Large-scale cosmic neighborhood
Composition: ~63 million galaxies, galaxy superclusters, filaments, voids, dark matter, intergalactic gas