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AsteriaStar
Interstellar molecule · NH₃

Ammonia

One of the first polyatomic molecules found in space, and a sensitive thermometer of dense cloud cores: the relative strengths of its radio lines reveal the temperature of the cold gas about to collapse into stars.

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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.