In the current race to build a commercial equivalent to the Sun, companies and universities on both coasts of the United States, and in Canada, China, France, Germany, Japan, and the United Kingdom are in a horse race using a variety of novel technological solutions including tokamaks, stellarators, lasers, and synchronized pneumatic pistons. One of these will produce the first commercial fusion reactor and Commonwealth Fusion Systems hopes to be the leader of the pack. In the latest development the company announced its successful testing of a high-temperature superconducting magnet that would work with a tokamak to confine a high-temperature plasma to produce a controlled fusion chain reaction and yield significant net energy output.