A super blue moon rises above NASA's Kennedy Space Center in Florida on Monday, Aug. 18, 2024. Although not actually appearing blue, as the third full moon in a season with four full moons, this is called a “blue” moon.
Nearly four decades ago, astronomers spotted one of the brightest exploding stars in more than 400 years. The titanic supernova, called Supernova 1987A (SN 1987A), blazed with the power of 100 million suns for several months following its discovery on Feb. 23, 1987.