Light was long considered to be a wave, exhibiting the phenomenon of interference in which ripples like those in water waves ...
Space telescope finds rare 'Einstein Ring' of light in nearby galaxy A rare ring of light surrounding a galaxy nearly 590 million light-years away from Earth has been discovered by a space ...
Europe's Euclid space telescope has detected a rare ring of bright light around a nearby galaxy, astronomers have said. The halo, known as an "Einstein ring," encircles a galaxy 590 million light ...