Puzzle #8

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Across
  1. 3. A group of stars forming a recognizable pattern
  2. 4. Final frontier that includes planets, stars, and galaxies
  3. 8. A hypothetical region in space with gravity so strong that nothing, not even light, can escape
  4. 10. The study of the universe beyond Earth's atmosphere
Down
  1. 1. The point in a planet or moon's orbit where it is closest to the sun
  2. 2. The phenomenon of a celestial body passing in front of another, as seen from Earth
  3. 5. The point in a planet or moon's orbit where it is farthest from the sun
  4. 6. The force that keeps planets and other celestial bodies in orbit around the sun
  5. 7. A large, spherical celestial body that emits light and heat due to nuclear reactions in its core
  6. 9. the natural satellite that orbits the Earth