Why Do We Need Satellites In Space

It depends on its purpose.

Why do we need satellites in space.

Imaging satellites can measure the changing sizes of glaciers which is difficult to do from the ground due to the remoteness and darkness of the polar regions. And that s not all gps and glonass are being joined by two additional global constellations europe s galileo and china s beidou which together will more the double the number of navigation satellites in orbit around earth. Nasa has launched many satellites into space. You can see a lot more of the earth at once including remote areas without ground antennas like the oceans and polar areas.

Satellites monitor ocean temperatures and prevailing currents. A satellite is a moon planet or machine that orbits a planet or star. At the beginning satellites were receiving very weak signal by passive re translators but soon passive re translators were replaced by active re translators transponders. There are many satellites currently in geosynchronous orbits.

The first was explorer 1 in 1958. The first satellite picture of earth came from nasa s explorer 6 in 1959. Spacex has said 1 584 satellites will be needed for the starlink system. But musk s pet project will need more devices orbiting to see this plan become a full fledged internet provider.

This orbit makes the satellite travel at the same rate as the earth s spin. Satellite looks like a very high tv mast which located 36 000 km up into space. The satellite isn t motionless though. The satellite was launched in 1957 and was called sputnik 1.

Satellites are launched into the space to do a specific job there are satellites that are launched to monitor the cloud patterns for the weather station there are satellites that launched to send television signals for sky tv and every satellite has to be designed specifically to fulfill its function. So on first glance it can be hard to see why we need both. Explorer was america s first man made satellite. The soviet union was the first to launch a satellite into space.

If it s communications being in space is like being on a very tall tower. The weather satellite pictures gif 60k we see on the news come from these satellites.