In 1987, an enormous blue arc, thought to be hundreds of trillions of miles long, was first considered one of the largest ...

Einstein rings occur when light from a distant galaxy bends to form a glowing ring around another object in the foreground as that object is being observed. The rarely observed rings are named for ...

The ring of light, known as an Einstein Ring, was discovered in September 2023 by Euclid, a space telescope on a six-year mission to map out the cosmos by observing billions of galaxies.

A distant galaxy, invisible for billions of years, has reappeared in a surprising form thanks to a rare cosmic illusion ...

This Hubble Space Telescope image features a remote galaxy, which appears as a red arc that partially encircles a foreground elliptical galaxy.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The European Space Agency’s (ESA) Euclid space telescope has ...

It's two galaxies, many billions of light-years apart, combined into one by a rare cosmic phenomenon called an Einstein ring. It's an optical illusion. Published recently as the James Webb Space ...

Scientists have discovered an incredible new "Einstein Ring"—a type of intergalactic mirage formed when a massive galaxy warps the fabric of spacetime like a colossal lens. The ring was spotted ...

Astronomers with the European Space Agency’s Euclid mission have captured an unprecedented look at a rare cosmic phenomenon — and they made the observations purely by happenstance. Einstein ...