Cách khám phá Expanding Universe 3D Explorer

Last reviewed: 2026-07-17

Reviewed by FreetoolOnline editorial team

Open the Expanding Universe 3D Explorer, watch the grid stretch, then read the facts panel for the Hubble Law numbers behind it.

1. Open https://freetoolonline.com/space-3d/expanding-universe.html and wait for the grid of markers.
2. Read the facts panel: v = H0 d, the H0 tension range, and the 13.8 Gyr age.
3. Compare near (blue) and far (orange) marker recession speeds as the grid stretches.
4. Toggle recession vectors, or Pause and Reset the stretch.
5. Compare with Redshift Doppler 3D for a single-source shift, or Cosmic Distance Ladder 3D for the wider ladder.

Expanding universe key figures

Quantity	Value
Age of the universe	~13.8 Gyr
Hubble law	v = H0 d

Next: the when guide or vs alternatives. Open the Expanding Universe 3D Explorer.

Last updated: Aug 1, 2026