Across
- 2. A dark spot on the Sun's surface due to magnetic activity. (Sunspot)Chapter 9
- 3. Jupiter and Saturn's strong magnetic fields in the solar system. (Magnetosphere)Chapter 7
- 5. A rapidly rotating neutron star emitting regular electromagnetic beams. (Pulsar) Chapter 13
- 7. A bright, active galactic nucleus powered by a supermassive black hole. (Quasar)Chapter 15
- 8. The study of light separated into its component wavelengths. (Spectroscopy)Chapter 2
- 9. A planet orbiting a star outside our solar system. (Exoplanet)Chapter 4
- 13. Zone The region around a star where conditions may support life. (HabitableZone)Chapter 18
- 14. An early stage of a star, before nuclear fusion begins. (Protostar)Chapter 11
- 15. A type of variable star used as a distance indicator. (Cepheid)Chapter 14
- 18. A measure of how an orbit deviates from a perfect circle. (Eccentricity)Chapter 6
- 19. A sudden onset of helium fusion in a star's core. (Heliumflash) Chapter 12
Down
- 1. A technique combining signals from multiple telescopes for higher resolution. (Interferometry)Chapter 3
- 4. A large grouping of galaxy clusters and groups. (Supercluster)Chapter 16
- 6. The region around Earth influenced by its magnetic field. (Magnetosphere)Chapter 5
- 10. A model placing the Sun at the center with planets orbiting it. (Heliocentric)Chapter 1
- 11. Energy The mysterious force causing the accelerated expansion of the universe. (DarkEnergy) Chapter 17
- 12. Saturn's largest moon with a dense atmosphere and surface lakes. (Titan)Chapter 8
- 16. A method to measure star distances by observing position shifts. (Parallax)Chapter 10
- 17. A group of stars forming a recognizable pattern in the night sky. (Constellation)Chapter 0