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Interferometry technique

Very Long Baseline Interferometry

Radio interferometry stretched across continents — antennas thousands of kilometres apart record the sky independently with precise atomic clocks, and the data are combined later. It achieves the finest angular resolution in all of astronomy; a global VLBI network imaged the shadow of a black hole.

Highlights

  • The sharpest vision in astronomy — baselines the size of the Earth

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • ESOEuropean Southern Observatory

    Southern-hemisphere observatory data and imagery (VLT, ALMA partner).