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Across
  1. 6. A powerful burst of energy from a dying star, often visible as a bright flash.
  2. 8. The point in a planet’s orbit when it is farthest to the sun
  3. 9. The term for a massive star that has collapsed under its own gravity to form a very dense object
  4. 10. Hole A region of space where gravitational forces are so strong that nothing, not even light, can escape.
  5. 11. Unit The distance between the Earth and the Sun
  6. 12. I'm the scientific term for the study of the structure, behavior, and evolution of the universe. What am I?
Down
  1. 1. I'm the process by which the universe became transparent. What am I?
  2. 2. The process by which stars are born in nebulae
  3. 3. The space telescope that helped reveal the age and expansion rate of the universe.
  4. 4. The largest moon of Saturn, known for its thick atmosphere.
  5. 5. The point in a planet’s orbit when it is closest to the Sun (6 letters)
  6. 7. The closest star to Earth after the Sun.