How do satellites work?

Satellites are machines that orbit planets, usually Earth, to provide communication, navigation, observation, or research services.

A satellite remains in orbit due to gravity and its speed. Gravity pulls it toward Earth, while its forward motion keeps it from falling. The balance creates a stable orbit.

Satellites have several key components:

• Power system – Usually solar panels and batteries
  
  

• Communication system – Transmits and receives signals
  
  

• Sensors or cameras – Collect data or images
  
  

• Propulsion system – Adjusts the satellite’s orbit
  
  

Satellites are used for GPS navigation, weather forecasting, internet, TV broadcasting, scientific observation, and military purposes.

Different types of orbits include low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary orbit (GEO), each suited for specific applications.

In summary, satellites orbit Earth or other planets to collect and transmit data, relying on gravity and speed to stay in orbit.