Archive · 15 Jan 2026

China's Artificial Sun Breaks Physics Limit

China's Artificial Sun Breaks Physics Limit

Scientists in China have made a big discovery with their 'artificial sun' project.

They found a way to break a rule in physics called the Greenwald limit.

This rule says how much super-hot gas (plasma) can be safely put into a doughnut-shaped machine to make energy, like the sun does.

Before, if too much plasma was added, the reaction would become unstable and stop.

But now, Chinese scientists have figured out how to add more plasma without causing problems.

They used special heating and cleaning methods to keep the machine's walls cool and clean.

This helps the plasma stay stable and not break apart.

The discovery is important because it could help make nuclear fusion, a clean and powerful energy source, more practical and efficient.

The scientists published their findings in a science journal called Science Advances.

Sources