https://padlet.com/mpgreen1/9fcc42a9f3mt9a4o Made with love en-us 2021-01-13 15:01:19 UTC 2026-04-09 10:59:02 UTC hello@padlet.com mpgreen1 https://padlet.com/mpgreen1/9fcc42a9f3mt9a4o/wish/1083306048 Supernova: A 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. ]]> 2021-01-13 15:01:59 UTC https://padlet.com/mpgreen1/9fcc42a9f3mt9a4o/wish/1083306048