Interstellar Space Exploration
While a lot of this is still at the theoretical stage, nuclear fusion has the ability to change space travel forever. One way of doing this will be in the propulsion area, likely through something like an antimatter-fusion hybrid drive. This will allow for deep space travel that could even allow us to reach higher rates of speed. We know that Matter-Antimatter reactions are 1,000 times more powerful than any nuclear fission produced in nuclear power plants. They are also 300 times more powerful than nuclear fusion energy. They could take us further will less fuel, but nuclear fusion works on pure energy. Therefore, having a hybrid engine will allow for the power we need and a consistent energy source too. Many also believe nuclear fusion will be utilized heavily in the theoretical hyperdrive engine too.