Space Review

3. A person trained to travel and work in space.
7. A bright streak in the sky made by a space rock burning up in Earth's atmosphere.
9. A tool that makes distant objects look closer and clearer.
10. A large cloud of gas and dust in space where new stars are born.
14. A large object that orbits a star and has cleared other objects out of its path.
15. A huge group of stars, gas, and dust held together by gravity.
16. A force that pulls objects toward each other, making things fall to the ground on Earth.
17. When one object in space blocks another, like when the Moon blocks the Sun.

1. A giant ball of hot gases that makes its own light and heat.
2. Another word for the universe, focusing on it as a well-ordered system.
4. An object that orbits a planet or star. It can be natural (like a moon) or made by humans (like a space station).
5. Everything that exists including all space, time, stars, and galaxies.
6. The path one object in space takes around another object.
8. A space object made of ice and dust that forms a bright tail when it gets close to the Sun.
11. Hole A place in space with gravity so strong that nothing, not even light, can escape from it.
12. A small rocky object that orbits the Sun, mostly found between Mars and Jupiter.
13. Year The distance light travels in one year, used to measure how far away things are in space.