We will have the 23rd online colloquium “Extreme Universe Colloquium” on March 14th (Thu) 16:00 (JST). The speaker is Prof. Suvrat Raju (ICTS TIFR Bengaluru). For details, please refer to the poster. If you have not registered yet, please register at our online event website at least three days prior to the colloquium. (It is not necessary to register again if you have done it already.)