🛰️ What Are Communication Satellites?
Communication satellites are machines placed in space to send signals like TV, phone calls, and internet from one place to another across the Earth.
📡 How Do They Work?
1. A signal is sent from the Earth (ground station) to the satellite.
2. The satellite receives the signal and boosts it.
3. Then, it sends the signal back down to a different place on Earth.
4. This happens very fast—faster than we can blink your eyes.
🌍 Why Are Communication Satellites Important?
1. They connect people all over the world.
2. Help with live TV, video calls, and mobile phones.
3. Support emergency communication during disasters.
4. Help planes, ships, and military talk even in remote areas.
🚀 Where Are They?
Most are placed in geostationary orbit, which means they stay above the same spot on Earth and move along with it.
⚙️ Parts of a Communication Satellite:
1. Antenna – to send and receive signals.
2. Solar panels – to get power from the Sun.
3. Transponders – to carry and change signals.
4. Control systems – to keep it in the right places.
How do scientists and engineers control communication satellites from Earth?
What kind of materials are used to build a satellite so it can survive in space?
How do satellites stay safe from space weather like solar storms or radiation?
What happens to a communication satellite when it stops working?
How long does it usually take to build and launch a communication satellite?