It's basically a living nightlight. You get this gorgeous hand-blown glass sphere, fill it with tiny marine dinoflagellates, and when you swirl it in the dark, they glow with a brilliant blue bioluminescent light. It is the ultimate 'wait, that exists?' desk accessory for science nerds. The catch is you do have to keep them alive with indirect sunlight, so think of it more like a low-maintenance pet than a standard lamp.