Neptunium-237 is a fairly unique material that is not frequently encountered in the real world, but yet is one that my colleagues in nuclear emergency response are keenly aware of. The concern about 237Np is that


Latest SNAP commercial.

The erstwhile leader of a futuristic group of gamma spectroscopists tells a dream-state traveler, “Tell your People about SNAP! Spread the Word!”  Indeed. SNAP. IS. BACK!