Einstein ring spotted around galaxy a ‘mere’ 500 million light years away - The discovery can help scientists test Albert Einstein’s general theory of relativity.
Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy. The halo, known as an Einstein ring, encircles a galaxy 590 million light-years away.
The structure is nearly 600 million light-years from Earth and is an early display of the nascent dark matter telescope's ...