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.
Why do we need satellites in space.
Nasa has launched many satellites into space.
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.
The satellite was launched in 1957 and was called sputnik 1.
Explorer was america s first man made satellite.
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.
It s in a very high orbit and circles the earth once a day.
You can see a lot more of the earth at once including remote areas without ground antennas like the oceans and polar areas.
It depends on its purpose.
If it s communications being in space is like being on a very tall tower.
The satellite isn t motionless though.
So on first glance it can be hard to see why we need both.
The first was explorer 1 in 1958.
But musk s pet project will need more devices orbiting to see this plan become a full fledged internet provider.
Satellite looks like a very high tv mast which located 36 000 km up into space.
This orbit makes the satellite travel at the same rate as the earth s spin.
A satellite is a moon planet or machine that orbits a planet or star.
The weather satellite pictures gif 60k we see on the news come from these satellites.
Data acquired by satellite borne radars were able to show sea levels have been rising by three mm a year over the last decade.
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Satellites monitor ocean temperatures and prevailing currents.
Spacex has said 1 584 satellites will be needed for the starlink system.
The soviet union was the first to launch a satellite into space.