Universe and Space

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Across
  1. 5. The line on which an object rotates
  2. 8. A series of space missions designed to send people to the moon
  3. 11. Life that originates outside Earth
  4. 14. A day when Earth's rotation axis is leaning along Earth's orbit
  5. 15. Reusable spacecraft that transport people and materials to and from space
Down
  1. 1. A day when Earth's rotation axis is the most toward or away from the Sun
  2. 2. The large, dark, flat areas on the Moon
  3. 3. The study of life in the universe, including life on Earth
  4. 4. Any small object that orbits a larger object
  5. 6. A spinning motion
  6. 7. Uncrewed spacecraft sent from Earth to explore objects in space
  7. 9. The motion of one object around another object
  8. 10. The path an object follows as it moves around another object
  9. 12. A vehicle designed to propel itself by ejecting exhaust from one end
  10. 13. Anything related to the moon