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AsteriaStar
History of discovery

The History of Spectroscopy

How splitting starlight into its colours revealed what the stars are made of — the dark lines in the spectrum betraying the elements present. It was the birth of astrophysics, the moment astronomy became not just where and when but what and how.

Highlights

  • The birth of astrophysics

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.