Well, you saw it yourself, standing in those neutron beams.

These neutrons change the nucleus of the irradiated material by adding a neutron, or by splitting it in the process of nuclear fission.

Recycling proponents want ultimately to build a fleet of fast neutron reactors that could consume the plutonium and other fissionable material.

Welcome to the degenerate era, in which the universe is populated by red and white dwarf stars, steadily cooling, and by the charred remains of supernova explosions neutron stars.