Star twinkles 18 times in new James Webb Space Telescope image

The James Webb Space Telescope finished the first major stage in its long process of aligning the observatory’s 18-segmented primary mirror.

A single star that the observatory looked at was deliberately rendered 18 times into a hexagonal shape. Eventually, those 18 images will perfectly align into a single, sharp focus, but the interim result portrays a star repeated perfectly in a hexagonal pattern reminiscent of a stunning celestial snowflake.