We Fired a Planet-Sized Atom at Mars at the speed of light

Описание: What would happen if an atom — with the mass of a single atom — suddenly expanded to the size of a kilometer… Mars… or even Jupiter, and then collided with Mars at the speed of light? ⚛️⚡🔴

In this Universe Sandbox experiment, we test one of the strangest physics scenarios imaginable:
The object always keeps the mass of a single atom, but its radius changes dramatically before impact.

Collision sizes tested:

⚛️ 1 km radius

⚛️ 100 km radius

⚛️ 1,000 km radius

🔴 Mars-sized atom

🪐 Jupiter-sized atom

Despite its enormous size, the object’s mass remains microscopic. That means its density becomes unbelievably low as it expands.

In this simulation, you’ll see:

Whether size alone can cause destruction

How relativistic speed changes everything

At what point velocity matters more than mass

Whether Mars even “notices” the impact

How light-speed physics behaves with ultra-low mass objects

This experiment reveals a surprising truth:
Without mass, even something the size of Jupiter can be harmless — until speed enters the equation.

What if an atom the size of Jupiter collided with Mars at the speed of light,
Universe Sandbox, atom collision, Mars experiment, extreme physics, light speed impact, space simulation, astrophysics experiment, cosmic scale test

A Jupiter-Sized Atom Hits Mars at Light Speed

Can an Atom Destroy a Planet?

We Fired a Planet-Sized Atom at Mars

Timecodes:

00:00 - Atom
01:01 - Atom Radius: 1 km
01:47 - Atom Radius: 100 km
03:04 - Atom Radius: 0.157 R Earth
04:35 - Atom Radius: Mars
06:55 - Atom Radius: Jupiter