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Instrument class · Chemical & isotopic composition

Mass Spectrometer

An instrument that sorts atoms and molecules by mass, identifying the chemical and isotopic makeup of a sample of gas or dust — essential for atmospheres, plumes, and returned samples.

Instruments of this class

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.