Astronomy & Space

1. Earth's only natural satellite
3. The mathematically correct, three-dimensional shape of Earth, roughly
5. The occupation of Christopher Columbus, who disproved the fall-off-the-world theory
7. Not an element, but a misspelling of a famous 16th-century explorer who circumnavigated the globe
9. A gas giant that rotates on its side, named for the Greek god of the sky
11. A giant cloud of gas and dust where new stars are born
12. The curved path, usually elliptical, that an object takes around a star or plane
13. The dramatic drop where flat-earthers fear ships will fall.

1. The fourth planet from the Sun, often called the "Red Planet
2. A voyage you could never complete if you sailed off the side of the planet.(Flat Earth Humor twist)
4. What disappears from view first (bottom to top) when a ship departs, proving the curvature
6. A system of millions or billions of stars, gas, and dust held together by gravity
8. According to some theories, the creatures controlling the world from a hollow center (Humorous theory)
10. A small, icy body that, when passing near the Sun, displays a visible coma and tail