Hubble Telescope Monitors Galaxy Cluster for Supernova Reappearance
NASA uses repeated Hubble observations of cluster MACS J0417 to track the return of supernova Athena and aid cosmic expansion measurements.
NASA's Hubble Space Telescope has captured a new image of the galaxy cluster MACS J0417 as part of an ongoing monitoring campaign. The cluster is being observed repeatedly to watch for the reappearance of a supernova named Athena.
The supernova's reappearance can help astronomers measure the expansion rate of the universe. The observations are part of repeated efforts to monitor for Athena's return.
Source: NASA