Department of Atomic Energy (DAE) inaugurated the Major Atmospheric Cherenkov Experiment (MACE) Observatory at Hanle, Ladakh | Current Affairs | Vision IAS
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The inaugural of MACE Observatory was a part of the Platinum Jubilee year celebrations of the DAE.

  • DAE was set up under the direct charge of the Prime Minister through executive order in 1954 in accordance with Atomic Energy Act, 1948. 
  • DAE leads Research and development for the peaceful uses of atomic energy. 

About MACE Observatory

  • It is largest imaging Cherenkov telescope in Asia and 2nd largest in the world. 
    • Cherenkov Telescope Array (CTA) will be the largest Cherenkov telescope in the world (currently under construction). It consists of two array located at Spain and Chile, respectively. 
  • It is located at an altitude of ~4,300 m, the highest of its kind in the world. 
  • Objective: Observe high-energy gamma rays to understand the most energetic phenomena in the universe (such as supernovae, black holes, and gamma-ray bursts).
  • It is named after scientist Pavel Alekseyevich Cherenkov, who discovered that charged particles glow when they pass through a non-conducting medium under certain conditions (referred as Cherenkov radiation). 
  • Indigenously built by Bhabha Atomic Research Centre (BARC) with support from Electronics Corporation of India (ECIL) and other partners. 
  • It will also complement global observatories such as High Energy Stereoscopic System (HESS), etc. 

What are Gamma Rays?

  • Gamma rays have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum.
  • Sources:
    • In the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.
    • On Earth, generated by nuclear explosions, lightning, and the activity of radioactive decay.

Why Hanle in ladakh is chosen for observatory?

  • Hanle Valley of Changthang (4250m above msl), the site is a dry, cold desert with sparse human population.
  • Cloudless skies and low atmospheric water vapour make it one of the best sites in the world for optical, infrared, sub-millimetre, and millimetre wavelengths.
  • In 2022, the Hanle Dark Sky Reserve (HDSR) was notified for or astro-tourism. 
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