Scientists have built the first-ever thorium reactor. Thorium is both more easily accessible and less dangerous than uranium—the most common fission fuel. The system also uses molten salt instead of ...

What if the key to solving the world’s energy crisis has been hiding in plain sight, buried within the Earth’s crust? Imagine an energy source that is not only abundant and efficient but also safer ...

Although uranium-235 is the typical fuel for commercial fission reactors on account of it being fissile, it’s relatively rare relative to the fertile U-238 and thorium (Th-232). Using either of these ...