Cosmic scale · Cosmic structure

LANDMARK 119 / 121

Laniakea Supercluster

≈520 million light-years

A vast basin of galactic motion that includes the Milky Way and the Virgo Cluster.

Wonder

Its boundary is defined by how galaxies flow, not by a solid edge.

Open source ↗
Visual evidence plate for Laniakea Supercluster 1025metres
SDvision interactive visualization software by DP at CEA/Saclay, FranceImage source ↗

Scale context

One coordinate on a continuous universe.

1024.69 mLaniakeaCosmic realm

Wonder · Explore · Deep

The number keeps its meaning.

01 · Explore

What this measurement describes

Extent describes a region whose edge may be diffuse, chosen or model-dependent.

02 · Deep

How certain is the boundary?

The value depends on a scientific model or inferred boundary. It is not a directly touched physical edge.

03 · Compare

What the engine actually divides

Vastoscope compares the SI value in metres for this flow-defined supercluster span. A ratio is mathematically valid as a linear span, while the interface identifies when the two selected definitions differ.

Familiar scale bridges

Give the number
something to stand beside.

These anchors are selected by logarithmic proximity from familiar human, engineered, planetary and cosmic references.

Evidence trail

Where this scale comes from.

Vastoscope keeps the displayed number separate from its measurement type and certainty. Representative and model-dependent values are intentionally labelled instead of presented as exact edges.

Nearby on the logarithmic rail

Continue through scale.

Next signal

Do not stop at the source list.

Continue by scientific relationship, narrative journey or a deliberately distant scale jump.