Cosmic detectives are investigating a case of mistaken stellar identity: CK Vulpeculae, an exploding star that was once known as the oldest recorded nova -- a nuclear explosion in space -- was more likely caused by the merger of two stars.
Cosmic detectives are investigating a case of mistaken stellar identity: CK Vulpeculae, an exploding star that was once known as the oldest recorded nova -- a nuclear explosion in space -- was more likely caused by the merger of two stars.