Outer Space

2. A scientist who studies celestial objects and the universe (10 letters).
5. An activity where astronauts leave their spacecraft and float in space (9 letters).
6. A ringed planet known for its striking rings (6 letters).
7. A planet that orbits a star outside our solar system (9 letters).
10. A celestial body that orbits a star and has its own gravity (6 letters).
12. The force that attracts two objects with mass toward each other (7 letters).
13. A celestial object made of ice, dust, and gas, with a tail when near the sun (6 letters).
14. All of space, time, matter, and energy in existence (8 letters).
16. A group of stars forming a recognizable pattern in the sky (12 letters).
17. A vehicle used for space travel that propels itself by expelling exhaust gases (6 letters).
18. A region of space with gravitational pull so strong that nothing can escape it (8 letters).

1. Relating to the sun (5 letters).
3. Special clothing designed to protect astronauts in space (9 letters).
4. A vast cloud of gas and dust in space, where new stars are born (6 letters).
6. An object that orbits a planet or star (9 letters).
8. A small celestial object that burns up upon entering Earth's atmosphere (6 letters).
9. A smaller chunk of rock or metal in space (8 letters).
11. A person trained to travel and work in space (9 letters).
12. A massive collection of stars, gas, dust, and dark matter (6 letters).
15. An instrument used to observe distant objects in space (9 letters).