Across
- 3. Refers to something possessing extraordinary large mass
- 4. 100 to 400 nano meters
- 5. dwarf a dense dead star
- 6. the branch of geology that that studies the structural features of the earth's crust
Down
- 1. a form of visible electromagnetic radiation with ultra rare lengths
- 2. A electromagnetic instrument used to make things seem closer
- 7. an object that is natural or artificial and that orbits a larger celestial body