Quick summary of the app
Asteroid Launcher is a free interactive simulator created by Neal Agarwal that models the effects of an asteroid impact. The tool places a global map at your disposal so you can pick an impact site and immediately observe which regions would suffer damage. It blends scientific estimates with visual mapping to give a realistic sense of consequences for different impact scenarios.
How the simulator behaves
The program uses physics-based calculations to estimate damage from an impact. After you pick a target on the map, the simulator computes the resulting crater, thermal effects, shock propagation, atmospheric disturbances, and possible seismic activity. You can run repeated experiments to compare outcomes from different asteroid parameters.
What you can modify before launch
- Asteroid diameter (size has a large effect on destruction)
- Entry angle into the atmosphere
- Velocity at impact
- Composition or class of the object
These inputs dramatically change the scale and character of the damage produced at your chosen location.
Information the app provides after impact
- Estimated earthquake magnitude triggered by the collision
- Predicted shock wave reach and overpressure levels
- Calculated crater dimensions
- Expected peak wind speeds from the blast
- Radius and intensity of the thermal (fireball) effects
- Approximate number of people within affected zones
- Breakdown of which neighborhoods or regions would sustain heavier damage
All results are presented with numeric values and on-map overlays so you can see both the raw figures and their geographic footprint.
Map features and navigation notes
The map offers detailed imagery and useful zoom levels for inspecting local terrain, but it does not support text search for specific addresses or place names. You must pan and zoom manually to position the impact marker. When zoomed in, the visuals are clear enough to identify urban centers, coastlines, and landmarks to help you choose targets.
Educational benefits and final thoughts
Asteroid Launcher is both entertaining and informative, suitable for casual users, students, and anyone curious about planetary hazards. While the interface can be a little awkward when locating exact spots, the simulator still allows accurate placement and produces informative breakdowns showing how different asteroid types, speeds, and angles alter outcomes and the human toll. Overall, it’s a compelling way to explore how catastrophic impacts scale with the characteristics of the incoming object.
Technical
- Web App
- Free