the closest red supergiant star to the solar system at around 550 light-years that is expected to go supernova within the next 100,000 years. It displayed some odd behavior in 2019-2020 ...

Like the subject of a previous Picture of the Week, LEDA 22057 is the site of a supernova explosion. This particular supernova, named SN 2024PI, was discovered by an automated survey in January 2024.

She added: “In December 2020, we identified a new bright supernova, now named ‘SN2020acct’, in a nearby spiral galaxy called NGC 2981. The light from SN2020acct disappeared pretty quickly.

Rayport, Jeffrey F., Dan Maher, and Dan O'Brien. "TikTok in 2020: Super App or Supernova?" Harvard Business School Case 821-087, February 2021. (Revised March 2022.) ...