Just like our Moon orbits the Earth, many of our artificial satellites also orbit the planet. These satellites are used for communication and imagery by the military and the public and various scientific institutions. Artificial satellites have been in our planetary system since 1957. The first artificial satellite was launched into space by Russia and it was named Sputnik, a beach-ball sized probe. Satellites are launched into space to observe Earth from above or to observe space without the impact of our atmosphere. Their use in our daily lives is significant as weather satellites are used in helping us prepare for any incoming disasters and phone satellites are used to ease communication.
Satellites vary in size and shape. Some are cubes while some are elongated or circular. They range from 10cm to 7 meters depending on their function.
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