How do satellites work?

Satellites are artificial objects orbiting around the Earth, used for a variety of purposes, from communication to observation and navigation. They work by following the laws of physics, specifically the principles of orbital mechanics.

To put a satellite into orbit, it is launched into space by a rocket, and then a set of thrusters and onboard computers adjust its speed and altitude to place it into the correct orbit. Once in orbit, the satellite is in a state of constant freefall around the Earth, which keeps it in its path, allowing it to remain in its orbit.

Satellites have a variety of applications, such as communication, weather forecasting, navigation, remote sensing, and scientific research. Communication satellites are used to transmit and receive signals for television, internet, and telephone services, while weather satellites are used to observe and predict weather patterns. Navigation satellites are used for location-based services like GPS, while remote sensing satellites are used for mapping, observation of the Earth's surface, and studying the environment. Scientific research satellites are used to conduct experiments and make observations in space, such as the Hubble Space Telescope, which has revolutionized our understanding of the universe.

Overall, satellites are crucial components of modern technology, allowing us to stay connected, informed, and explore the universe beyond our planet.