Solar system

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Across
  1. 1. the star at the center of the Solar System
  2. 5. the largest moon of Saturn
  3. 8. is a minor planet of the inner Solar System
  4. 9. is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process that is called outgassing
  5. 10. is a dwarf planet in the Kuiper belt
  6. 13. As the brightest natural object in Earth's night sky after the Moon
  7. 14. often referred to as the “Red Planet”
  8. 16. farthest-known Solar planet from the Sun
Down
  1. 1. It is a gas giant with an average radius of about nine and a half times that of Earth
  2. 2. is an object that has been intentionally placed into orbit
  3. 3. the largest in the Solar System
  4. 4. an astronomical object comprising a luminous spheroid of plasma held together by its gravity
  5. 6. is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft.
  6. 7. large amounts of water can be found throughout the Solar System
  7. 11. As with gas giants, ice giants also lack a well defined "solid surface.
  8. 12. the the nearest planet to the Sun
  9. 15. is the boundless three-dimensional extent in which objects and events have relative position and direction