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GlossaryScience

Satellite

An object that orbits a planet; usually a spacecraft used for communication, navigation, weather or observation.

Also called satellites

Why it matters

Satellites underpin GPS, weather forecasts, broadcasting and climate monitoring.

Satellite in the news

More Science terms

Science

Exoplanet

A planet that orbits a star other than our Sun.

Science

Space telescope

A telescope placed in orbit above Earth's atmosphere, which gives clearer views of space than ground-based telescopes.

From the blog

All glossary terms