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