the totality of all space, time, matter, and energy

the expanse that exists beyond the Earth and between celestial bodies

unable to find one's way or unable to be located

a trip that goes in one direction, without a return

a celestial body moving in an elliptical orbit around a star

a person who is trained to travel in a spacecraft

a visual representation or likeness of an object

a label attached to an item, giving information about it

the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets

a gesture, action, or sound conveying information or an order

Global Positioning System

a voyage from one place to another that involves going into space

the third planet from the Sun in our solar system