NASA, ESA, S. Beckwith (STScI) and the HUDF Team
The galaxies in this image are part of the nearly 10,000 galaxies in the Hubble Ultra Deep Field, the deepest visible-light image of the universe. The image shows galaxies in a variety of shapes, sizes, and colors. The three galaxies just below center are having a “tug-of-war” with gravity. Their distorted, odd-ball shapes and lack of structure are due to this fierce encounter. The three large galaxies in the upper half of the image show spiral features because they have not been distorted from interactions. The faintest, smallest, reddest galaxies seen in the image may be among the most distant known, existing when the universe was 800 million years old.