flight and space

5. A large bag filled with hot air or gas to make it rise in the air, with a basket for passengers hanging from it.
7. A vehicle, missile, or aircraft which obtains thrust by the reaction to the ejection of fast moving exhaust from within a rocket engine
8. Design machines that fly.
11. To set or thrust in motion.
12. Robotic aircraft, used extensively by the military.
13. A short, easily-remembered slogan, verse, or tune.

1. A powered, aerial vehicle that does not carry a human operator, uses aerodynamic forces to provide vehicle lift, can fly autonomously or be piloted remotely, can be expendable or recoverable, and can carry a lethal or nonlethal payload.
2. The art and science of designing, building, and operating manned or unmanned space objects.
3. A large bag filled with hot air or gas to make it rise in the air, with a basket for passengers hanging from it
4. A power-driven aircraft kept buoyant by a body of gas (usually helium) which is lighter than air.
6. A powered heavier-than-air aircraft with fixed wings from which the aircraft derives most of its lift.
9. A glider designed for sustained flight.
10. An advertising film which promotes a product in an informative and supposedly objective style.