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

A rare ring of light surrounding a galaxy nearly 590 million light-years away from Earth has been discovered by a space telescope that scientists hope will uncover more cosmic phenomena throughout the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers with ...

The European Space Agency (ESA) said Monday that its Euclid space telescope has detected a rare bright halo of light around a nearby galaxy. Known as an Einstein ring, the halo was captured in photos ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. An Einstein ring! What at first appears to be a single, ...

Sharper views of black holes are turning what once looked like a fuzzy cosmic icon into a precision tool for testing gravity ...

An Einstein Ring was discovered by the European Space Agency's Euclid space telescope in September 2023. Space telescope finds rare 'Einstein Ring' of light in nearby galaxy A rare ring of light ...