cylindrical projectile that can be propelled to great height or distance by combustion of its contents. Weapons shaped like a long tube carrying bombs. To travel, increase, or rise very quickly.

from or in beginning.

Mathematical statement showing things to be equal.

having paid employment. action of doing work. To make an effort to do something.

To do something without stopping, or after pausing.

Person who travels in space.

advanced or elaborated to specified degree. To make a photograph from film.

used for emphasis with following adjective functioning as adverb. Thing that is not yet known or named.

To go around another object (often in space).

Influencing someone to do something (good).

Being what was wanted or needed. used to greet someone in polite or friendly way. instance or manner of greeting someone. To accept or receive something happily and gladly.

neatly and methodically arranged. Organized in a way that makes sense or is neat. hospital attendant.

person visiting someone or somewhere.

Concerning an orbit. each of actual or potential patterns of electron density that may be formed in atom or molecule by one or more electrons.

act of launching. Acts of firing rockets into the air. To put a ship into the water for the first time.