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Youths!

Webb observed galaxy cluster El Gordo, a cosmic teen that existed 6.2 million years after the big bang. The most massive cluster of its era, it’s a perfect gravitational magnifying glass, bending & distorting light from distant objects behind it: https://go.nasa.gov/3DDfSBF
#JamesWebb

Webb Spotlights Gravitational Arcs in ‘El Gordo’ Galaxy Cluster

A new image of the galaxy cluster known as “El Gordo” is revealing distant and dusty objects never seen before, and providing a bounty of fresh science.
Isabelle Yan (NASA)
#jameswebb
in reply to NASA

John F Wu
John F Wu
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Fun fact - my first paper of my PhD featured El Gordo! We were also the first to spot the galaxy-galaxy lensed partial ring, which you can see toward the right of the image. We used Herschel and ALMA observations, so we mostly saw the dust and gas rather than stars, but it's still a wonderful massive merging cluster.

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