AR-2020-21

137 33 rd ANNUAL REPORT 2020-21 The SouthAfricanAstronomical Observatory (SAAO), during October 20 – 23, 2020, celebrated its 200th birthday, and unveiled as a National Heritage site on the first day. Samir Dhurde (IUCAA) conducted a workshop onMasteringAstronomy, with Sonal Thorve, onOctober 22. (For details, seeKhagol, No. 125, January 2021) SAAO Astrofest Dark Matter Day DarkMatter Day is an international event, that aims to shed light on the mystery on Dark Matter. From 2020, October 31 is celebrated as the 'Dark Matter Day' worldwide, which spreads the word about the many fascinating ways scientists search for Dark Matter, and the importance of devoting scientific resources to unravel this cosmic riddle. (For details, seeKhagol, No. 125, January 2021) PuLastya Science Festival To cherish the relationship of late Shri. P. L. Deshpande and his wife, late Smt. Sunitabai Deshpande with IUCAA, the PuLastya Science Festival has been celebrated annually, and this year, it was celebrated duringNovember 7 – 8, 2020 virtually. The event was hosted and coordinated by Sonal Thorve. (For details, seeKhagol, No. 125, January 2021)