| Answer | Crossword Clue |
|---|---|
| cosmos | The universe seen as a well-ordered whole |
| cosmoses | The universe seen as a well-ordered whole |
| metagalaxy | the whole universe considered as a system of galaxies; any system of galaxies |
| metagalaxies | METAGALAXY, the whole universe considered as a system of galaxies; any system of galaxies |
| astronomy | The branch of science that deals with celestial objects, space, and the physical universe as a whole |
| universes | All existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago |
