Looking at the sky, and many times at the stars, sometimes the best ideas arise that some would call chimeras. Leonardo da Vinci the man of chimeras was considered by some to be guilty of leaving out art to devote himself to astronomy. It seems that the same has happened nowadays to “Leonardo of the Netherlands”, this is how a Dutch architect is defined who, three years ago, after reading an article on ultraviolet rays emitted by the stars, began working on a huge sphere which emits powerful ultraviolet rays that can also kill viruses, not bad for the current global pandemic situation. Brilliant!