Planets

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Across
  1. 3. is the most massive and second-largest known dwarf planet in the Solar System.
  2. 5. Is an ice giant with a unique feature – it rotates on its side, giving it a distinctive appearance.
  3. 7. Is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune.
  4. 8. The only planet known to support life.
  5. 12. It has a diameter approximately that of Saturn's moon Iapetus, or 60% that of Pluto.
  6. 13. The largest planet in the solar system.
  7. 14. Often called Earth's "sister planet" due to its similar size and composition.
Down
  1. 1. A non-resonant object, it measures approximately 1,086 km in diameter.
  2. 2. Is a small, rocky world with a thin atmosphere.
  3. 4. The farthest known planet from the Sun.
  4. 6. Is a dwarf planet in the outermost reaches of the Solar System discovered in 2003.
  5. 9. It was the first asteroid discovered, on 1 January 1801, by Giuseppe Piazzi at Palermo Astronomical Observatory in Sicily and announced as a new planet.
  6. 10. Is another gas giant with a wide array of moons, including Titan, which has a thick atmosphere and lakes of liquid methane.
  7. 11. It was discovered in 2004 by a team headed by Mike Brown of Caltech at the Palomar Observatory in the United States and disputably also in 2005 by a team headed by José Luis Ortiz Moreno at the Sierra Nevada Observatory in Spain.
  8. 12. Often referred to as the "Red Planet" because of its reddish appearance.