Hand-Sized Earth vs Mars — Same Mass, Total Destruction

What would happen if Earth and Mars were shrunk down to the size of a human hand — but kept their real, full planetary mass — and then collided with each other? ✋🌍💥🔴 In this Universe Sandbox experiment, we create one of the most extreme density scenarios imaginable. By compressing entire planets into hand-sized objects, their gravity becomes far stronger than anything naturally found in the Solar System. In this video, you’ll see: 🌍 How insanely dense Earth and Mars behave at hand size 🌀 Extreme gravitational pull and spacetime distortion 💥 A collision more violent than most star impacts ⚫ Whether the planets collapse into a black-hole–like object 🌌 How the surrounding Solar System reacts to such massive densities This simulation shows why mass matters more than size, and how compressing planets turns them into cosmic weapons. Hand-Sized Earth vs Mars — Same Mass, Total Destruction We Shrunk Earth and Mars… But Kept Their Mass Earth and Mars Compressed Into Your Hand | Universe Sandbox What if we shrink Earth and Mars to the size of a hand and collide them with each other?, Universe Sandbox, compressed planets, extreme density, Earth vs Mars, planet collision, gravity experiment, astrophysics simulation, impossible physics, space experiment Timecodes: 00:00 - Planets 1000 times lighter 01:02 - Planets are 10 times denser 02:12 - Planets are 1000 times denser 03:39 - Planets are 1 Million times denser 05:03 - Planets are 1 Billion times denser 06:15 - Planets are 1 Septillion times denser