This expansive galaxy cluster is nicknamed the Christmas tree galaxy cluster because it’s so colourful and because of transient objects – those which vary in brightness – creating the appearance of flickering lights.
This detailed image was created by combing NASA Hubble and Webb space telescope data.
Credit: NASA, ESA, CSA, STScI; Image Processing: Joseph DePasquale (STScI)
Original source
Credit: https://science.nasa.gov/missions/webb/nasas-webb-hubble-combine-to-create-most-colorful-view-of-universe/