Across
- 2. Scientist who studies objects and events beyond the Earth's atmosphere
- 3. The nearest star
- 4. This is the planet that we live on
- 5. a ration between the actual size of an object and its size in a model
- 8. This blue ice giant is very cold is surrounded by faint rings
- 9. A collection of billions of stars
- 11. Natural phenomena that causes any two objects to be pulled together
- 12. The planet with the fastest orbit around the Sun
- 13. This planet is known as the red planet
- 15. The rocky, inner planet is often called Earth's twin, is named for a love goddess
- 16. Any push or pull
Down
- 1. Smaller than a star, revolves around a star and reflects that star's light
- 3. Rockets, satellites, probes, space capsules, space stations, and space shuttles
- 5. System-The collection of space objects that includes the Sun, its planets, their moons, and other smaller objects
- 6. This planet is the biggest in our Solar System
- 7. This gas giant is known for its rings
- 10. Huge ball of gas that gives off heat and light
- 13. The measurement of the amount of matter or stuff that makes up an object
- 14. This ice gas giant if the farthest planet in our Solar System