Little red dot galaxies owe some of their coloration to a phenomenon called "redshift." As light from a galaxy travels toward Earth, the expansion of the universe stretches its wavelength ...

You can easily visualize this expansion ... the dots grow farther apart. In this example, the dots represent the galaxies, while the membrane represents the finite yet unbounded universe.

NASA's James Webb Space Telescope has revealed unusual red dots in the distant universe. These red objects, known as "little red dots" (LRDs), raise fresh questions. Scientists discovered them ...