Physicists at the Large Hadron Collider in Switzerland accidentally turned lead into gold while smashing lead atoms into each other.
To transform lead into gold, the scientists fired beams of lead nuclei at each other at near-light speeds to create a powerful electric field that pulls out protons.
The lead nuclei, when narrowly missing each other, release protons due to the huge electric field, converting some lead atoms into gold atoms.
The production of gold at the collider is seen as a nuisance as the transformed nuclei collide with the walls, leading to a decrease in beam intensity over time.