"James Webb Space Telescope Discovers Second Lensed Supernova in Distant Galaxy"

NASA's James Webb Space Telescope has discovered a second gravitationally lensed supernova in a distant galaxy, MRG-M0138. The first supernova, named Requiem, was found in 2019 and was too late to measure the Hubble constant. The second supernova, named Encore, was discovered serendipitously and will be used to measure and confirm the Hubble constant. These multiply imaged supernovae provide valuable insights into the expansion rate of the universe. Infrared observations in 2035 will capture the final appearances of both supernovae and provide a precise measurement of the Hubble constant.