These images of the first-ever foreground quasar (blue) lensing a background galaxy (red) were taken with the Keck II telescope using laser guide-star adaptive optics. Disclaimer: AAAS and EurekAlert!

The brightest parts of this image — foreground stars and the bright center of the quasar — show the characteristic "starry" spikes produced by Hubble (and other telescopes') interior structure.

which is strikingly similar to an "Einstein ring," is adorned by four bright spots — but not all of them are real. The ...

Using the James Webb Space Telescope, astronomers have discovered the first "Einstein zig-zag," an image of one quasar repeated six ... This is the first real chance to answer such questions ...