Einstein Z-zag in Quasar Image

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gravitational lens

Space

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James Webb Space Telescope spots 1st 'Einstein zig-zag' — here's why scientists are thrilled

Summary

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Astronomers have discovered the first "Einstein zig-zag," an image of one quasar repeated six times in a single image.

The arrangement was created thanks to an effect first proposed by Albert Einstein in 1915 called "gravitational lensing" The discovery could help scientists tackle two of cosmology's greatest mysteries: dark energy and the Hubble constant.

One in 50,000 lensed quasars would have such a configuration, says Dux.

The alignment so good that they both act to detect light from a quasar source located around 11 billion light-years away, while the foreground galaxy also acts to lens light from the intermediate galaxy.

Dux: "We might not find another one for a long time, if ever".

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