The blue glow of a nuclear reactor comes from a phenomenon called “Cerenkov luminescence,” where electrons moving through an insulator travel faster than the speed of light.  Russian physicist Pavel Cerenkov won the 1958 Nobel Prize for this discovery.  A collaborative group in New York and California are exploring radionuclides with Cerenknov effect, and PET imaging to visualize the tracer’s uptake in vivo. So far, this has only been done in mice studies.            MORE