The universe rarely fails to amaze. One of its latest surprises—nicknamed the "Einstein zig-zag"—reveals a stunning arrangement of galaxies and a distant quasar. Together, they produce a gravitational ...

Astronomers have observed the first confirmed instance of the "Einstein zig-zag," a phenomenon where light from a distant quasar bends in a zig-zag pattern after passing through two regions of warped ...

A new JWST study has revealed the true origins of a luminous quasar that has been duplicated six times as its light "zig-zags" through space-time via a phenomenon first predicted by Albert Einstein.

"This unique lensing configuration allows us to constrain both the Hubble constant and dark energy parameters simultaneously — something that is generally not possible." When you purchase through ...