Guides
The real science behind our games, explained simply.
Guide · Planet SmashWhat Would Happen If Two Planets Collided?
From the impact that made our Moon to a hypothetical Mars–Earth crash: what really happens when planets collide, how much energy is released and whether it could happen in our solar system.
Guide · Planet SmashHow Much Energy Would It Take to Destroy a Planet?
How much energy it takes to completely destroy Earth, Mars, Jupiter and every other planet, explained with gravitational binding energy and easy comparisons.
Guide · Rocket Spaceflight SimulatorHow Do Rockets Reach Orbit? A Beginner’s Guide
Why reaching orbit is about going sideways fast, how much speed it takes, why rockets use stages and what the rocket equation means — with tips for building better rockets in games.