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Planetary process

The Greenhouse Effect

The warming of a planet's surface by an atmosphere that lets sunlight in but traps the outgoing heat. Modest and life-enabling on Earth, it is extreme on Venus, whose thick carbon-dioxide atmosphere makes it the hottest planet in the Solar System.

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.