“Scientists and engineers near the English city of Oxford have set a nuclear fusion energy record, they announced Thursday, bringing the clean, futuristic power source another step closer to reality.

Using the Joint European Torus (JET) — a huge, donut-shaped machine known as a tokamak — the scientists sustained a record 69 megajoules of fusion energy for five seconds, using just 0.2 milligrams of fuel. That’s enough to power roughly 12,000 households for the same amount of time.”

From CNN.