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Cosmic Mysteries of the Expanding Universe
Explore key terms and concepts that reveal the wonders and structure of our vast cosmos.
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Across
  • 2. Explosive death of a massive star
  • 3. Extremely bright active galactic nucleus
  • 4. Path of an object around another in space
  • 7. Small rocky body orbiting the sun
Down
  • 1. The universe seen as a well-ordered whole
  • 5. Massive system of stars, dust, and dark matter
  • 6. Invisible substance making up most of universe mass
  • 8. Cloud of gas and dust in space
  • 9. The theory describing the universe's origin

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