Next-generation nuclear plants could be safer and more efficient, but first the US has to figure out how to fuel them up—without relying on Russia.
    Save this story for later.
Nuclear fuel generating plant in russia
Workers check fuel bundles of the water-moderated and cooled reactor VVER-100 at the Novosibirsk chemical concentrate plant. Photograph: Vladimir Zinin/ITAR-TASS News Agency/Alamy
    Save this story for later.

If you want to make nuclear fuel, take some of the heavy metallic element and make it into a gas. Then whirl it around in a radioactive tornado, until the lightest particles cluster towards the center. There are some molecule containing a radioactive substance. It can produce energy when it splits. If you do this again and again in a series of cascades, you will have low-enriched uranium, fuel for a traditional nuclear reactor. You will eventually reach high enrichment and possibly have the makings of a bomb if you go long enough.