We will have the 10th online colloquium “Extreme Universe Colloquium” on November 18th (Fri) 17:00 (JST). The speaker is Prof. Antonio Miguel Garcia-Garcia (Shanghai Jiaotong University). 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.)