Did you ever wonder why there is a mineral named after a Moon goddess in your daily vitamin?

It was one of those weird naming things, according to Dr. Wikipedia. The scientist who discovered the element noticed that it was similar to another element that had already been named after the Earth.

Whatever the etymology, we are all lucky to have a good source of selenium in multivitamins, though we only need a trace amount, as this video from the University of North Dakota shows: