A gravitational lens tripled the event in the night sky and helped astronomers measure the rate at which the universe is expanding.
Source : Webb Telescope Captures Supernova Appearing Three Times Due to Spacetime Bending
A gravitational lens tripled the event in the night sky and helped astronomers measure the rate at which the universe is expanding.
Source : Webb Telescope Captures Supernova Appearing Three Times Due to Spacetime Bending