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Loading contentAlso known as High Resolution Echelle Spectrometer
HIRES on Keck I is a high-resolution optical spectrograph used in many exoplanet discoveries and studies of distant galaxies.
Facts on this topic will be cited from these primary and reference sources.
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.