April 11, 2019

Scientists have obtained the first image of a black hole, using Event Horizon Telescope observations of the center of the galaxy M87.


  • What is it? The Event Horizon Telescope (EHT) is a planet-scale array of eight ground-based radio telescopes forged through international collaboration. The EHT links telescopes around the globe to form an Earth-sized virtual telescope with unprecedented sensitivity and resolution.

  • EHT array: Following Telescopes are part of it –
    • Atacama Large Millimeter Array

    • Atacama Pathfinder Experiment

    • Heinrich Hertz Submillimeter Telescope

    • IRAM 30m telescope

    • James Clerk Maxwell Telescope

    • Large Millimeter Telescope

    • South Pole Telescope

    • Sub-millimeter Array

  • Objective: The EHT was designed to capture images of a black hole. It offers scientists a new way to study the most extreme objects in the Universe predicted by Einstein’s general relativity during the centennial year of the historic experiment that first confirmed the theory.

  • Bodies involved: Thirteen partner institutions worked together to create the EHT. Key funding was provided by the US National Science Foundation (NSF), the EU's European Research Council (ERC), and funding agencies in East Asia.

  • Technique Used: The EHT observations use a technique called very-long-baseline interferometry (VLBI).

Source : The Hindu