NASA's space-worthy nuclear reactor could be ready to fly by 2022

Today, scientists dream of one day building settlements on the Moon and even Mars, where research can be conducted and human travelers can live safely for months or years. Making that dream a reality is going to take a lot of work, and one of the most pressing concerns is power. The Department of Energy and NASA think that nuclear power may be the way to go, and a prototype fission reactor has already shown promise in tests here on Earth. Now, as Space.com reports, the DOE believes that it could...