Space Exploration

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Across
  1. 6. A belief that events are secretly controlled or faked, often without strong evidence. (___________ Theory)
  2. 8. A rocket engine or section that provides extra power during launch.
  3. 10. The curved path an object follows as it moves around another object in space due to gravity.
  4. 11. The process of a spacecraft returning to Earth’s atmosphere.
  5. 12. The force that pulls objects toward each other, such as pulling objects toward Earth.
  6. 13. A substance burned by rockets to produce thrust and power their engines. (2 words)
  7. 15. The path a moving object follows through space.
  8. 18. A series of NASA missions that successfully landed humans on the Moon.
  9. 19. The speed needed for an object to break free from a planet’s gravity without falling back. (2 words)
  10. 20. The U.S. government agency responsible for space exploration and research.
  11. 23. The system that moves a rocket forward using force.
  12. 24. The field of designing and building aircraft and spacecraft. (____________ Engineering)
  13. 25. NASA’s modern program aiming to return humans to the Moon and eventually go to Mars.
Down
  1. 1. Broken pieces of objects, often referring to space junk orbiting Earth.
  2. 2. Anything related to the Moon.
  3. 3. A condition in space where gravity is very weak, causing objects to float.
  4. 4. The cargo carried by a rocket, such as satellites or astronauts.
  5. 5. A large spacecraft in orbit where astronauts live and conduct experiments. (International ______ _____ [ISS])
  6. 7. An object that orbits a planet, either natural (like the Moon) or man-made.
  7. 9. A vehicle that uses thrust from engines to travel through space.
  8. 14. The force that pushes a rocket upward into space.
  9. 16. A section of a spacecraft designed for a specific job, such as controlling the mission or landing on the Moon.
  10. 17. A protective layer that prevents a spacecraft from burning up during re-entry. (2 words)
  11. 21. A person trained to travel and work in space.
  12. 22. Competition between countries (mainly the United States and Soviet Union) to achieve major accomplishments in space exploration. (2 words)