T he Euclid space telescope, launched by the European Space Agency (ESA) in 2023 to explore the dark universe, has made a stunning discovery: a perfect Einstein ring encircling the center of the ...

Europe's Euclid space telescope has detected a rare ring of bright light around a nearby galaxy, astronomers have said. The ...

If the background galaxy, the lensing galaxy, and the telescope are perfectly aligned, the image appears as a ring – called an Einstein ring. Einstein rings were first theorised to exist by ...