Across
- 4. — an object that moves around a planet or another object in space.
- 5. — a tool used to see things that are very far away.
- 6. — a person who studies and learns about the world through science.
Down
- 1. — a large round object that moves around a star.
- 2. — a small rocky object that moves around the Sun.
- 3. — to watch something carefully to learn more about it.
- 7. — an object in space made of ice, dust and rock.