Stardust

point at an atom in your body. rewind it to its factory.

hydrogen from the Big Bang, carbon from a dying star, gold from colliding neutron stars

Point at an atom in your body and it traces back to the actual event that made it: hydrogen straight from the Big Bang, carbon cooked in a dying star, heavier elements like gold forged when two neutron stars collided. The atoms in a body were assembled somewhere else, over billions of years, long before there was a body to put them in.

Concepts: nucleosynthesis, stars.

An interactive you play with one thumb, on Wundr.