Cosmic Web Observatory

Cosmic Web Observatory — Large-Scale Structure

v3.0 · CWO·26·Q2 · 3D

Cosmic Statistics

Filaments

50 – 100 Mpc

Elongated bridges of dark matter and gas linking galaxy clusters.

Voids

100 – 300 Mpc

Vast under-dense regions occupying ~60% of cosmic volume.

Galaxy clusters

1 – 10 Mpc

Hundreds to thousands of galaxies bound at filament nodes.

Superclusters

> 100 Mpc

Laniakea (our home) spans ~160 Mpc and contains ~10⁵ galaxies.

Composition of the Universe

DE 68% · DM 27% · Baryons 5%

Dark Energy Dark Matter Baryons

Baryonic matter traces the gravitational skeleton built by dark matter.

Cosmic Evolution

Time since Big Bang

13.8 Gyr

CMB Today

Drag back in time to watch structure smooth out — at z≈1100 the universe was a near-uniform plasma. Filaments grow as gravity amplifies fluctuations.

3D · SPHERE

SUPERCLUSTER SCALE

100 – 500 Mpc

At this scale the universe is a foam of dark-matter filaments separating huge voids.

100 Mpc

Zoom

Supercluster Cluster Galaxy Stellar

Dark matter

Baryons

Matter flow

Legend

Dark-matter density field

Baryonic galaxy clusters

Matter streaming into nodes

Notes

The cosmic web emerged from quantum fluctuations amplified by gravity over 13.8 billion years. Dark matter collapsed first, forming a scaffold into which baryons fell, cooled, and lit up as galaxies at filament intersections.

Navigator

Click the map to jump.

Controls

DragPan the universe

WheelZoom in / out

ClickDrop a gravitational well

2× tapZoom to point

WASDFly through the cosmos

Q / EZoom out / in

ShiftHold for warp speed