Space

12345678910111213141516
Across
  1. 2. A person trained to travel in space.
  2. 4. The first American in space.
  3. 7. The first person to walk on the Moon.
  4. 9. The distance light travels in one year.
  5. 11. A telescope in Earth's orbit.
  6. 12. A space rock that survives impact on Earth.
  7. 14. A group of stars forming a recognizable pattern.
  8. 15. The study of the universe’s origin and evolution.
  9. 16. A famous cosmologist and physicist.
Down
  1. 1. The first human in space.
  2. 3. A product developed for space but useful on Earth.
  3. 5. The Sun and all celestial objects orbiting it.
  4. 6. The force of attraction between masses.
  5. 8. A collapsed star with strong gravitational pull.
  6. 10. When one celestial body moves into the shadow of another.
  7. 13. The galaxy that contains our solar system.