💥 Giant Impact Lab: Planet Collisions, Merger vs Hit-and-Run and Debris Disks

Collide two differentiated planets (iron core and rocky mantle) in a particle simulation with self-gravity and shock heating, vary mass ratio, speed and impact angle, and see whether they merge, hit-and-run or leave a debris disk, compared with the critical-angle and Q*_RD regime map. Unlike the existing moon-formation sims it maps the whole collision-outcome space and is prompted by the reported 2026 Webb signs of Mars-sized worlds colliding around another star.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install