8.9K views · 104 reactions | When massive stars die, they go out with a bang  These are known as supernova explosions, and what remains are breathtaking structures like the ones you'll discover in the video below  Craving more jaw-dropping views of the cosmos? Explore our archive and feast your eyes: https://orlo.uk/jjqJE  ESO | ESO Astronomy | Facebook

Supernova supernova is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. The original object, called theprogenitor, either collapses to a neutron staror black hole, or is completely destroyed. The peak optical luminosity of a supernova can be comparable to that of an entire galaxy before fading over several weeks or months. | Free AstroScience