Stars that die off the beaten path

Astronomers have created a detailed forecast of where they expect to observe future stellar explosions in a nearby galaxy, opening a new window into how exploding stars shape the cosmos. Focusing on M33, a spiral galaxy about 2.7 million light‑years away, this research combined new maps of cold atomic hydrogen gas from the U.S. National Science Foundation Very Large Array (NSF VLA) with millimeter‑wave observations of molecular gas from the Atacama Large Millimeter/submillimeter Array (ALMA).