What is a satellite, why are they important, and how have satellites changed our understanding of the Solar System?
- Any object orbiting a planet is called a satellite.
- Moons are examples of natural satellites.
- The first man-made satellite was Sputnik, launched in 1957.
- Today, thousands of satellites orbit far above the Earth, fulfilling a variety of functions.
A satellite is an object that orbits a planet.
Moons are examples of natural satellites.
Jupiter has over 70 moons!
But the term "satellite" is more commonly used to describe anything man-made, which has been blasted into orbit.
From the very first Sputnik in 1957, to the many thousands that now orbit far above ...
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