Universe Sandbox Online

You can even create a "Tiny System" by shrinking a star down to the size of a flashlight while keeping it hot enough to support life. 2. Build the Worlds (Planetary Composition)

In the , planets aren't just static spheres; they are made of 12 distinct materials , including iron, silicate, water, and hydrogen. universe sandbox

Here is how you can put together a story using the tools available in the simulation: 1. Set the Stage (The Star) You can even create a "Tiny System" by

Will it be a stable yellow dwarf like our Sun, or a volatile blue giant ? planets aren't just static spheres