Live since Nov 2026
Asteroid impact simulator
Pick a rock, its size, speed and angle, and where it lands. Then watch the strike play in 3D as a film: entry, fireball, plume, blast, waves, and the sky for years after.
Launch the simulator- Presets
- 8, Chelyabinsk to Chicxulub
- Or your own
- Any rock or comet, 1 m to 20 km
- Numbers
- Energy, crater, fireball, blast, quake, climate
- Physics
- Collins, Melosh & Marcus (2005) and later work
- Runs in
- Your browser, nothing to install
- Best on
- A laptop or desktop