The Einstein ring, formed as light from a distant galaxy bends to glow around another object in the foreground, could help ...

Discover the extraordinary Einstein ring discovered by the Euclid space telescope. A perfect ring of light encircling galaxy ...

A rare ring of light surrounding a galaxy nearly 590 million light-years away from Earth has been discovered by a space ...

"They're so rare, and they're incredibly useful scientifically," said Conor O'Riordan of the Max Planck Institute for Astrophysics.

Just like fingerprints and snowflakes, no two galaxies in the entire Universe are exactly alike. But a new discovery 567 million light-years away really is jaw-droppingly unique. There ...

"There's a very narrow window after the impact when a galaxy like this would have so many rings." So-called ring galaxies are extremely rare in the Universe, and they are thought to be the result of a ...

Euclid, the European Space Agency’s dark Universe detective, has made an astonishing discovery – right in our cosmic backyard ...

Euclid space telescope sent some images back to Earth during an early testing phase. While reviewing the pictures, astronomer ...