Satellites And How They Work
We all know satellites to be a small light that appears really bright in the night sky. We all know it is much bigger in space, but because we have never seen it closely enough to be sure what it looks like or what it really is. A satellite is a type of planet or machine that orbit another planet. In the sense of the word, an example of a satellite is the planet Earth because it orbits the Sun. However, in the context of this article, a satellite is a machine that orbits the Earth. The machine is launched from the planet Earth and it moves around the earth or another planet or star in space. We can also call the moon a satellite to the earth because it orbits the Earth. These types of satellites are called natural satellites. However, there are thousands of artificial satellites in the space. The first satellite to be launched into space was launched by the soviet union in 1957. It was called Sputnik 1.
HOW DOES SATELLITES WORK?
As we have already established this article speaks of artificial satellites. They are launched into the space on rockets from the earth. It orbits the Earth when it has ascended into space to a point where the earth’s gravity holds it on a balanced speed. If it doesn’t balance itself like this, it will continue travelling into space without returning or fall back to the earth. Satellites have specific paths that they travel in, in the space. These paths are peculiar to each satellite and they never cross path.
The Polar satellites and the Geostationary satellites are the two most seen types of satellites in space. The Geostationary satellites seem stationary when we see them from the earth because they are moving in the same direction with the Earth, and at the same speed with the Earth. It travels from West to East over the equator. The Polar satellites on the other hand, travel from North to South pole and South to North pole. These satellites can see the entire globe in a strip from the space.
Basically, the satellites give the Earth and Space scientists a better view of the Earth. They give information about entities of the skies and space such as the clouds. The watch wildlife, space gases, volcanoes, the Earth’s energy emissions and many others. The satellites help the scientists predict weather, natural disasters and famine.
Other satellites that are not facing the earth are tracking some harmful rays of light emitted from the sun and other entities of the space. Some check the outer space for asteroids, comets, stars, other planets and general knowledge of the outer space. Satellites are used to learn more about other planets like Mars. They are used to detect life forms and evidences of water and plants.
Satellites are very essential to the progress of the planet Earth and to improve our knowledge of our habitat and environment.