universe

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Across
  1. 2. When one celestial body moves into the shadow of another, obscuring it from view.
  2. 6. A small, rocky object that orbits the Sun, mostly found between Mars and Jupiter.
  3. 7. A celestial object made of ice and dust that develops a "tail" when it nears the Sun.
  4. 9. A group of interacting or interdependent parts forming a complex whole (e.g., the Solar System).
  5. 10. A large celestial body that orbits a star and has cleared its orbital path of other debris.
  6. 14. A giant cloud of dust and gas in space; often a "nursery" where new stars are born.
  7. 15. Dust: Small particles of matter floating in outer space.
  8. 17. A repeated decorative design or a predictable sequence of events.
  9. 19. The branch of science that studies celestial objects, space, and the physical universe.
  10. 20. A massive ball of gas (mostly hydrogen and helium) that produces its own light and heat.
  11. 21. A colourless, odourless flammable gas; found in the atmospheres of gas giants like Neptune.
  12. 23. A massive system of stars, gas, dust, and dark matter held together by gravity.
  13. 24. Diagram A drawing that shows a real object with its sizes reduced or enlarged by a specific amount.
  14. 25. A streak of light in the sky caused by a meteoroid crashing through Earth’s atmosphere.
Down
  1. 1. An imaginary line about which a body (like a planet) rotates.
  2. 3. A reusable spacecraft designed to transport people and cargo between Earth and space.
  3. 4. Energy emitted as electromagnetic waves or subatomic particles.
  4. 5. The distance light travels in one year (about 9.46 trillion kilometres).
  5. 8. The force that attracts a body toward the centre of the earth, or toward any other physical body having mass.
  6. 11. Having the shape of an ellipse (an oval or elongated circle).
  7. 12. A group of stars forming a recognisable pattern that is traditionally named after its apparent form.
  8. 13. The curved path an object takes around a star, planet, or moon.
  9. 16. The lightest and most abundant chemical element; the primary fuel for stars.
  10. 17. An uncrewed spacecraft sent to explore and transmit data back from space.
  11. 18. An object that orbits a planet; can be natural (the Moon) or artificial (GPS satellites).
  12. 22. The envelope of gases surrounding a planet or other celestial body.