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Technique · Photometry & Imaging

Interferometry

Combining the light of separate telescopes so they act as one much larger instrument, achieving resolution impossible for a single dish. Radio interferometry links antennas across continents; it produced the first images of black-hole shadows.

Photometry & ImagingMeasures: Fine angular detail

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.