[Yo-Yo]

Fusing two Hydrogen atoms into one Helium atom, creating vast power and a replacement source for Helium that is used for MRI machines and other superconductor uses.

A win-win.

Pity it'll never be commercially viable.

[Nateman]

Did you know the half life of a single proton in the Sun is billions of years? Once it does finally become Deuterium its half life is about a minute.