Researchers have for the first time turned germanium—a widely used semiconductor—into a superconducting material by embedding gallium atoms in its crystal structure. This breakthrough could usher in a new era of quantum devices and ultra-efficient electronics.

Title is a bit misleading - it's not pure germanium that superconducts here, it's germanium doped w/ Gallium atoms.

Superconducting germanium alloys have been known for decades, I used a Molybdenum/Germanium superconducting alloy in my PhD research 20 years ago, with much higher Tc.

The interesting aspect of this current experiment is the precise alignment of the Ga atoms into specific points of the Ge lattice, so preserving the crystalline structure order which leads to some interesting effects.