We will have the 20th colloquium “Extreme Universe Colloquium” on November 14th (Tue) 10:00 (JST) (Online/Yukawa Institute, Maskawa Hall). The speaker is Prof. Anne Broadbent (University of Ottawa). 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.)