Space

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Across
  1. 3. - Everything that exists in space.
  2. 4. The area of air and gas that envelopes Earth and other astronomical objects.
  3. 6. A huge collection of gas, dust and billions of stars and their solar systems held together by gravity.
  4. 9. An astronomical object made of bright, glowing matter called plasma. They’re held together by gravity and are incredibly hot.
  5. 10. A scientist who studies the universe.
  6. 13. A person trained to travel in a spacecraft.
Down
  1. 1. An instrument that allows us to see into space.
  2. 2. A small body of matter from outer space that enters Earth’s atmosphere and appears like a streak of light.
  3. 4. Small, rocky objects that orbits the Sun.
  4. 5. When one celestial body blocks light from reaching another by moving between it and its light source.
  5. 7. A cavity in the ground of a celestial object, typically caused by explosions or meteor impact.
  6. 8. The force that pulls objects towards each other.
  7. 11. An object intentionally placed into space to orbit a celestial body to collect information.
  8. 12. Objects made of frozen gases, rock and dust that orbit the Sun.