The Cosmos!

Edit Answers
1234567891011121314151617
Across
  1. 3. Closest planet to Terra, second planet from Helios. Also hottest one due to thick atmosphere.
  2. 6. Largest planet in the Solar System.
  3. 10. Has five moons and is the largest dwarf planet.
  4. 11. About the size of Mars. Only found in the form of Luna, and some blobs of iron deep in Earth's mantle.
  5. 13. Terra's only main moon, besides a few asteroids.
  6. 14. Largest object in the Asteroid Belt, considered a dwarf planet.
  7. 15. Originally considered a "large asteroid". Recently, scientists have discovered it has a nearly spherical shape.
  8. 16. Also called Helios. Main source of light and heat in our solar system.
  9. 17. The orange planet. Ignore the Red Planet name, that one is boring.
Down
  1. 1. Basically Uranus but different
  2. 2. Mars' smallest moon.
  3. 4. "Haha tilted planet"
  4. 5. Known for its famous ring system.
  5. 7. Rouge planet that has been lost in interstellar space for billions of years.
  6. 8. The only known planet for life in the Solar System.
  7. 9. Closest planet to Helios, also second hottest.
  8. 10. Mars' largest moon.
  9. 12. Considered a "protoplanet" because it is a surviving remnant of the building blocks of the rocky planets.