"To Infinity, and Beyond!"

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Across
  1. 3. The smallest planet in the Solar System.
  2. 4. Known as the Red Planet.
  3. 5. These stars will die down into either a black hole or a neutron star.
  4. 7. Discovered in December 13, 1781 by William Herschel.
  5. 8. A gaseous planet.
  6. 10. Where Earth and our Solar System are located.
  7. 11. The biggest stars in the universe are called these.
  8. 14. It's the largest planet in the Solar System.
Down
  1. 1. Has a mountain named Maat Mon.
  2. 2. Flattened at the poles due to a fast rotation on its axis.
  3. 3. Most of the stars in the galaxy, including the Sun, are considered these.
  4. 6. Around 4.6 billion years old according to scientists.
  5. 9. Orbits the Sun on a different plane than the 8 planets, going over them and below them.
  6. 12. Between Jupiter and Mars.
  7. 13. The center of the Solar System.