Across
- 2. All space time matter and energy that exist
- 5. Force of attraction between objects with mass
- 7. Relating to the universe or large-scale space structures
- 10. Vast systems of stars gas dust and dark matter bound by gravity
- 12. Capacity to do work or cause physical change
- 13. Electromagnetic radiation that carries energy through space
Down
- 1. Branch of physics that studies celestial objects and the universe
- 3. Increase in distance between galaxies over time
- 4. Regions of spacetime with gravity so strong nothing can escape
- 6. Leading theory describing the origin of the universe from a hot dense state
- 8. Curved path of an object moving under gravity around another object
- 9. Celestial bodies that orbit a star and do not produce their own light
- 11. Massive spheres of hot gas producing light and energy through fusion