Well, this made me smile.
The big fuzzy white lights in the center of the picture, and the smaller, similar ones encircling it, are the Abell 370 galaxy cluster.
And the tiny bluish lights, some of them smashed flat or pulled into arcs, are galaxies behind Abell 370, so far away they wouldn't otherwise be seen. But the galaxy cluster acts as a gravitational lens, magnifying and distorting whatever's on the other side.
Image Credit: NASA, ESA, Jennifer Lotz and the HFF Team (STScI)
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