The glowing/pinkish sample on the right side is an actual sample containing radioactive curium and the protein lanmodulin, during a fluorescence spectroscopy experiment at LLNL. The protein makes curium glow when exposed to UV light. In the presence of the protein, curium luminescence becomes strong enough to be observed by the naked-eyes. The schematic represents the structure of the curium-protein complex, with three curium atoms bound per molecule of protein. Credit: Lawrence Livermore ...