Perfect for beginners with simple, common vocabulary
Celestial Mechanics and Stellar Mysteries is a hard crossword puzzle with 18 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Celestial Mechanics and Stellar Mysteries
Challenging puzzle for experienced crossword solvers
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Across
- 1. Distant, extremely luminous galactic nuclei fueled by accretion
- 2. Ultraviolet spectral line crucial in hydrogen gas studies
- 3. Time when day and night durations are nearly equal
- 5. Study of the origin and development of the universe
- 6. Celestial object notable for strong radio wave emissions
- 11. Small solar-system body often confused with comets
- 12. Relating to the band of constellations along the ecliptic
- 17. Unit of astronomical distance derived from stellar parallax
Down
- 4. Point in space-time where density and gravity become infinite
- 7. Wavelength elongation indicating an object moving away
- 8. Stellar explosion marking the death of a massive star
- 9. Boundary line where the sky seems to meet the Earth or sea
- 10. Interstellar cloud glowing with ionized gases and dust
- 13. Instrument gathering electromagnetic radiation to reveal distant worlds
- 14. Hypothetical quantum particle mediating gravitational force
- 15. North Star pivotal for celestial navigation in the Northern Hemisphere
- 16. Celestial event where one body shadows another
- 18. Rapidly rotating neutron star emitting lighthouse-like radio waves
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