Initializing, please wait a moment
How to explore Expanding Universe 3D Explorer
Open the Expanding Universe 3D Explorer, watch the grid stretch, then read the facts panel for the Hubble Law numbers behind it.
- Open https://freetoolonline.com/space-3d/expanding-universe.html and wait for the grid of markers.
- Read the facts panel: v = H0 d, the H0 tension range, and the 13.8 Gyr age.
- Compare near (blue) and far (orange) marker recession speeds as the grid stretches.
- Toggle recession vectors, or Pause and Reset the stretch.
- 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.
Why trust these tools
- Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
- No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
- Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
- Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
- Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.