Challenging puzzle for experienced crossword solvers
Celestial Wonders of the Cosmic Realm
A crossword exploring key concepts, phenomena, and objects within the vast universe.
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Across
- 1. Invisible substance thought to account for most mass in the universe
- 2. Another word for the universe considered as a whole
- 6. Explosive death of a massive star
- 8. Rocky object orbiting the sun, smaller than a planet
- 10. Massive system of stars, dust, and dark matter
- 11. Extremely luminous active galactic nucleus
Down
- 3. Principle suggesting the universe can be described on a boundary
- 4. Region with gravity so strong that not even light escapes
- 5. Instrument used to observe distant celestial objects
- 7. High-energy particles from outer space
- 9. A late phase star expanding and cooling
- 12. Cloud of gas and dust in outer space
- 13. Path one object takes around another due to gravity
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