NASA, ESA, I. Pasha, P. van Dokkum
Day 16 of the 2025 Space Telescope Advent Calendar: The Bullseye. This recent image of LEDA 1313424, nicknamed the Bullseye Galaxy, was made by the Hubble Space Telescope. Scientists believe that the smaller blue galaxy seen here just below the Bullseye crashed through the heart of the larger galaxy about 50 million years ago, creating enormous rings in its wake like ripples in a pond.
See the full advent calendar here, where a new image will be revealed each day until December 25.
