The Major Atmospheric Cherenkov Experiment (MACE) telescope was inaugurated in Hanle, Ladakh, at an altitude of 4.3 km. It is the world's highest imaging Cherenkov telescope and has a 21-meter-wide dish, the largest in Asia. It was built by Bhabha Atomic Research Centre, the Tata Institute of Fundamental Research, the Electronics Corporation of India Ltd., and the Indian Institute of Astrophysics. It detects high-energy gamma rays indirectly. Gamma rays, emitted by cosmic events like supernovae and black holes, are blocked by Earth's atmosphere. MACE uses Cherenkov radiation, faint blue light produced when gamma rays interact with air molecules, to study these rays. It is an imaging atmospheric Cherenkov telescope (IACT).
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