In nuclear fusion high pressure and temperature fuse two deuterium nuclei and transform them into?

In nuclear fusion, high pressure and temperature enable two deuterium nuclei to fuse, resulting in the formation of a helium-3 nucleus and a neutron. This process releases a significant amount of energy, which is a key principle behind the energy produced in stars, including our sun. The fusion of deuterium is one of the steps in the broader fusion processes that ultimately produce heavier elements and substantial energy output.