happyberde:

The JET device is currently the worlds largest Tokamak in operation. The JET facilities include plasma heating systems capable of delivering up to 30 megawatts of power, an Active Gas Handling System and a beryllium handling Facility providing JET with a unique Tritium and Beryllium capability, respectively.

It contains heat, 10 times the Sun’s and it’s enclosed by magnetic field. It’s awesome!