The 125th anniversary of the iconic Kodaikanal Solar Observatory (KSO) was celebrated on 1 April 2024 by Indian Institute of Astrophysics (IIA), an autonomous institute of the Department of Science and Technology (DST), to remember the history of KSO, felicitate its scientists, and honour its legacy was a milestone for astronomy in India. The KSO houses a digital repository of 1.2 lakh digitised solar images and thousands of other images of the Sun recorded every day since the start of the 20th century. A.S. Kiran Kumar, former Chairman of ISRO and Chairperson of the Governing Council of IIA then unveiled the KSO 125 logo for the anniversary celebrations along with a booklet detailing the history and the research highlights of the Observatory.

Webpage of the event here.