Supernovas that we can actually observe with the naked eye are few and far between. The last one, Kepler's Star, happened in 1604, and there are typically a few during each century.
Of course, we have powerful technology that allows us to photograph supernovas and because of that, we have beautiful, colorful photos of these star explosions. A one last burst of colorful light from a massive explosion that marks the beginning of the end for a star. It's positively beautiful and poetic.
Supernovas in nearby galaxies
Supernova (Part II)
“A last burst of colorful light from a dying star.”