Vesuvia

Vesuvia was a world under CSA control that was settled despite warnings of an unstable star. The central star itself was estimated to be several hundred or thousand years away from a supernova, yet Vesuvia was settled anyway. Due to these warnings, the world was mostly unable to get CSA support until they lobbied for exploratory teams of engineers to be embedded in CSA exploration missions. Jane Schulex was one notable combat engineer who served in Alpha. Just before she left for the AlterVerse, she learned that Vesuvia's star had gone supernova, destroying her homeworld that was inhabited by 80 million people.