Match the description to the correct astronomical term. Prompt 1slow-moving massive particles, not yet identified, that don't absorb, emit, or reflect light or other electromagnetic radiation Answer for prompt 1 slow-moving massive particles, not yet identified, that don't absorb, emit, or reflect light or other electromagnetic radiation Prompt 2having a consistent and even distribution of matter that is the same everywhere Answer for prompt 2 having a consistent and even distribution of matter that is the same everywhere Prompt 3the assumption that, on the large scale, the universe at any given time is the same everywhereisotropic and homogeneous Answer for prompt 3 the assumption that, on the large scale, the universe at any given time is the same everywhereisotropic and homogeneous Prompt 4a large region of space (more than 100 million light-years across) where groups and clusters of galaxies are more concentrated; Answer for prompt 4 a large region of space (more than 100 million light-years across) where groups and clusters of galaxies are more concentrated; Prompt 5massive particles, not yet identified, that don't absorb, emit, or reflect light or other electromagnetic radiation; Answer for prompt 5 massive particles, not yet identified, that don't absorb, emit, or reflect light or other electromagnetic radiation; Prompt 6a process by which a larger galaxy strips material from or completely swallows a smaller one Answer for prompt 6 a process by which a larger galaxy strips material from or completely swallows a smaller one Prompt 7a region between clusters and superclusters of galaxies that appears relatively empty of galaxies Answer for prompt 7 a region between clusters and superclusters of galaxies that appears relatively empty of galaxies Prompt 8a small cluster of galaxies to which our Galaxy belongs Answer for prompt 8 a small cluster of galaxies to which our Galaxy belongs Prompt 9a galaxy or merger of multiple galaxies that turns gas into stars much faster than usual Answer for prompt 9 a galaxy or merger of multiple galaxies that turns gas into stars much faster than usual Prompt 10an energy that is causing the expansion of the universe to accelerate; the source of this energy is not yet understood Answer for prompt 10 an energy that is causing the expansion of the universe to accelerate; the source of this energy is not yet understood Prompt 11the same in all directions Answer for prompt 11 the same in all directions Prompt 12changes in individual galaxies over cosmic time, inferred by observing snapshots of many different galaxies at different times in their lives Answer for prompt 12 changes in individual galaxies over cosmic time, inferred by observing snapshots of many different galaxies at different times in their lives Prompt 13a collision between galaxies (of roughly comparable size) that combine to form a single new structure