On 4 october 1957 the soviet union launched the world s first artificial satellite sputnik 1 since then about 8 900 satellites from more than 40 countries have been launched.
What are artificial satellites used for.
Satellites can even have people in them like the international.
They enter orbit around the earth s atmosphere or travel to other planets after launching through rockets and remain.
Imaging satellites produce high resolution data of almost the entire landmass on earth.
Artificial satellites come from more than 50 countries and have used the satellite launching capabilities of ten nations.
3 1957 the soviets launched an even more massive satellite sputnik 2 which carried a dog laika the united states.
A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder.
An artificial satellite is an object that people have made and launched into orbit using rockets.
Artificial satellites are used for many purposes including communications navigation gathering weather information creating maps and even spying.
A brief history of artificial satellites.
The materials used in space are more often than not the most advanced materials that humans have created and we are constantly researching and creating new and improved materials.
Artificial satellites come in several forms including telescopes and probes.
There are about 2 000 communications satellites.
Satellites are increasingly important to the developing world.
Such data used to be a closely guarded military capability but now nearly anyone with an internet connection can find his house using google earth.
It creates a communication channel between a source transmitter and a receiver at different locations on earth communications satellites are used for television telephone radio internet and military applications.
The size altitude and design of a satellite depend on its purpose.
A few hundred satellites are currently working but thousands of unused satellites and satellite fragments orbit the earth as space debris the largest satellite is the international space station which was put together by several different countries including the.
Artificial satellites are able to complete these tasks and endure in space thanks to the unique materials used to create them.
There are currently over a thousand active satellites orbiting the earth.
Artificial satellites are used to study the earth other planets to help us communicate and even to observe the distant universe.
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