This document provides an overview of robots, including their history, mechanisms, applications, and types. It discusses how the concept of robots originated in ancient Greece and expanded in the 20th century. Robots are machines that are controlled by code to perform tasks instructed by humans. They work through locomotion, power, actuation, and control systems. Examples of robot types include industrial, medical, military, entertainment, and space robots. Space robots specifically are used to collect information in space about planets and stars.