BIG BLACK HOLE · SAGITTARIUS A* · GPU LIVE

The center of
our galaxy.
Alive.

Big Black Hole is an interactive 3D visualization of Sagittarius A*, the supermassive black hole at the centre of the Milky Way. Orbit it, alter its spin, and explore its light-bending accretion disk.

Our mission: build the web's most immersive 3D experience of Sagittarius A*.

Get the desktop edition$2.99
Distance from Earth~27,000 LY
Estimated mass~4M Suns
ObjectSgr A*
ENTER THE GRAVITY LAB
01 — LIVE EXPERIMENT

Big Black Hole's dedicated window into curved space-time.

Enter the
gravity lab.

Drag to orbit Sagittarius A*, scroll to travel across the distance, and click the light paths or the black centre to uncover their scientific meaning. Fun Mode launches a playable orbital run.

INITIALIZING GPU

A cinematic loop made to live on your display.

One object.
Four million suns.
One continuous orbit.

The loop is a cinematic, physically inspired interpretation of the galactic centre. It evokes gravitational lensing, the black-hole shadow, and a luminous accretion disk—without asking your computer to run a costly real-time renderer all day.

Read the NASA science reference ↗

Made for the display, not the feed.

Every pixel has somewhere to go.

01

Desktop Cinema

1920 × 1080 · 16:9

02

macOS ready

Plash local website · 16:9

03

Windows ready

Lively Wallpaper · 16:9

MP4 cinematic loop · silent · no executable included · illustrated installation guide for macOS and Windows

Edition 001

Bring the galactic center home.

One purchase. A 1080p cinematic loop for macOS and Windows, with a simple installation guide you can follow in minutes.

  • 1080p cinematic video loopMP4
  • Silent, seamless cinematic loopMP4
  • macOS + Windows installation guideIncluded
  • Personal desktop licenseForever
ONE-TIME PURCHASE$2.99 USD

Checkout opens after the final release. Your private download links will be issued only after Stripe confirms the purchase.

Before you cross the horizon.

What is Big Black Hole?+

Big Black Hole is the interactive experience and desktop edition. Sagittarius A*—also written Sgr A*—is the real supermassive black hole at the centre of the Milky Way that inspired it.

Is this a scientifically exact simulation?+

No. It is a cinematic, physically inspired visualization rather than a numerical general-relativity solver or a telescope image. The science reference below explains the real Sagittarius A* observations.

Do I need to install an app?+

You receive ordinary MP4 files, never an executable. The included guide covers Lively Wallpaper for Windows and Plash for macOS.

Will it slow down my computer?+

Animated wallpapers use some system resources. This edition uses an efficient 1080p H.264 loop; the guide includes the recommended settings for both supported apps.