World’S Largest Telescope’S Construction Starts in Chile (Download PDF)


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Extremely Large Telescope (ELT) construction has been started in Chile and it will be the world’s largest optical telescope. ELT will be five times larger than the top observing instruments which are currently used.

  • The telescope will be constructed at the middle of the Atacama Desert on 3,000 meter-High Mountain. The telescope will start its operations in 2024.
World’s Largest Telescope’s Construction starts in Chile

World’s Largest Telescope’s Construction Starts in Chile

World’s Largest Telescope’s Construction starts in Chile

  • The European Southern Observatory (which comprises European and southern hemisphere nations) has founded ELT.
  • ELT will be constructed at the estimated cost of 1 billion euros at 2012 prices.

About ELT

  • The ELT’s main mirror will measure some 39 meters (43 yards) across.
  • This massive size of the mirror will be very helpful to understand universe.
  • The telescope will enable astronomers to find smaller planets, image larger ones, and also can be characterize their atmospheres.
  • These will be most important capabilities to understand whether those planets have life or not.
  • Atmosphere of the Atacama Desert is dry, so that is perfect for observing conditions one can find on Earth.
  • Till 2020s 70 % of the world’s astronomical infrastructure may be slated built in the Atacama Desert.

European Southern Observatory

  • It was founded in 1962 in Chile and it is a 16 nation intergovernmental ground based astronomy research organization.
  • It has developed many technologically advanced telescopes and also operating it and they are:

    • New Technology Telescope
    • Very Large Telescope (VLT)
    • Atacama Large Millimetre Array etc.

- Published/Last Modified on: June 3, 2017


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