everything that exists, especially all physical matter, including all the stars, planets, galaxies, etc. in space (U______)

providing conditions that are good enough to live in or on (H_______)

the force that makes objects fall toward the earth, or toward some other large object such as a planet or a star

a cylinder-shaped device for making objects that are far away look closer and larger, using a combination of lenses, or lenses and curved mirrors

to send something out, such as a new ship into the water or a spacecraft into space (L______)

the scientific study of the universe and of objects that exist naturally in space, such as the moon, the sun, planets, and stars

the natural environment in which an animal or plant usually lives

a vehicle used for travel in space

a device sent up into space to travel around the earth, used for collecting information or communicating by radio, television, etc.

an important job, especially a military one, that someone is sent somewhere to do (M______)

extremely small

quickly and suddenly (S______)

a person who has been trained for travelling in space