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.

Supernovae are one of the most useful events in all of astronomy. Scientists can directly measure their power, their spin, ...

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.) ...