SPACE

3. A sequence of numeric codes generated at regular intervals by a timing synchronization system.
4. The star that the Earth orbits.
6. The way something is identified or distinguished from other things.
9. Matter that doesn't emit light.
10. A collection of stars.
11. A group of galaxies.
12. The galaxy, of which the sun and solar system are a part of.

1. A celestial body moving in an elliptical orbit around a star.
2. A hypothetical connection between widely separated regions of space-time.
4. The state, fact, quality or condition of being singular.
5. A group of clusters.
7. The planet on which we live.
8. A fixed luminous point in the night sky that is a large, incandescent body like the sun.