Across
- 1. galaxy we reside in
- 3. large objects made of dust that orbit the Sun
- 5. extremely luminous active galactic nucleus
- 7. luminescent part of interstellar medium
- 8. matter hypothetical form of matter (Dark __
- 9. a gravitationally bound system of stars
- 10. is a planet outside the Solar System.
- 13. a small rocky body orbiting a sun.
- 15. celestial body moving in orbit around a star.
- 16. hole nothing can escape it's gravity (Hole)
Down
- 1. small body of matter from outer space.
- 2. stars that make an imaginary shape
- 4. transient astronomical event
- 6. a celestial body resembling a small planet
- 11. antiparticles of normal matter.
- 12. an object that orbits a plane
- 14. a highly magnetized rotating neutron star
- 16. Bang A theory of how the universe began.