Definition that contains galaxies
- intergalactic between or among galaxies
- coma berenices a constellation in the northern hemisphere between Ursa Major and Bootes; contains a cluster of some 10,000 galaxies
- hubble's law (astronomy) the generalization that the speed of recession of distant galaxies (the red shift) is proportional to their distance from the observer
- redshift (astronomy) a shift in the spectra of very distant galaxies toward longer wavelengths (toward the red end of the spectrum); generally interpreted as evidence that the universe is expanding
- continuous creation theory (cosmology) the theory that the universe maintains a constant average density with matter created to fill the void left by galaxies that are receding from each other
- intergalactic space the space between galaxies
- steady state theory (cosmology) the theory that the universe maintains a constant average density with matter created to fill the void left by galaxies that are receding from each other
- great attractor a massive grouping of galaxies in the direction of Centaurus and Hydra whose gravitational attraction is believed to cause deviations in the paths of other galaxies
- magellanic cloud either of two small galaxies orbiting the Milky Way; visible near the south celestial pole
- hubble law (astronomy) the generalization that the speed of recession of distant galaxies (the red shift) is proportional to their distance from the observer