Satellite: meaning, definitions and examples

A general term for any object that orbits around a planet or star. Can refer to both natural satellites like moons and artificial satellites used for communication, weather monitoring, etc.

• The weather satellite helps meteorologists predict storms.
• The Moon is Earth's natural satellite.

A broad term for any vehicle or device designed for travel or operation in outer space, including satellites, space probes, and manned vehicles.

• The International Space Station is a habitable spacecraft orbiting Earth.
• NASA's spacecraft landed on the surface of Mars to conduct research.

Specifically refers to a spacecraft that is designed to orbit around a planet or other celestial body. It does not land but keeps circling the object.

• The Mars Orbiter has been sending back detailed images of the planet's surface.
• The Moon Orbiter has discovered new craters on the lunar surface.

An unmanned spacecraft designed to explore outer space and gather scientific information. Probes can be sent to various parts of the solar system and beyond.

• The Voyager space probes have provided valuable information about the outer planets.
• The space probe was sent to study the asteroid belt.

The word 'satellite' can also be used to indicate a small country or region under the political or economic influence of a more powerful one, often used in a historical or geopolitical context. This usage can carry a slightly negative connotation.

• During the Cold War, Eastern European countries were often referred to as Soviet satellites

When referring to a natural celestial body that orbits a planet, specifically Earth's moon, or any moon of other planets in a casual or general context.

• The full moon is especially bright tonight
• Jupiter has many moons, with Ganymede being the largest

When referring to any celestial body that naturally orbits a planet, especially in a scientific or formal context.

• Earth has one natural satellite, known as the Moon
• Researchers are studying the natural satellites of Mars, Phobos, and Deimos