Outer Space

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Across
  1. 3. A group of objects in space, including the Sun, eight planets, moons, asteroids, and other things, that are all connected by gravity.
  2. 4. Everything that exists—stars, planets, galaxies, and all of space.
  3. 6. A ball of ice, rock, and dust that orbits the Sun and develops a bright tail when it gets close.
  4. 7. A huge group of stars, gas, and dust held together by gravity.
  5. 8. The path an object takes as it moves around another object in space.
Down
  1. 1. A small, rocky object that orbits the Sun, mostly found in the asteroid belt between Mars and Jupiter.
  2. 2. The study of stars, planets, and everything in space.
  3. 5. The force that pulls objects toward each other, keeping planets in orbit around the Sun.