Why in News
  • According to a recent study, the Indian Astronomical Observatory (IAO) located at Hanle near Leh in Ladakh is becoming one of the promising observatory sites globally.
  • The Indian Astronomical Observatory has one of the world’s highest sites for optical, infrared and gamma-ray telescope. 
Key Points
  • About:
    • Hanle site is as dry as the Atacama Desert in Chile and much drier than Devasthal (Uttarakhand) and has around 270 clear nights in a year and is also one of the emerging sites for infrared and sub-mm optical astronomy

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