If you want to learn what Fast Radio Bursts (FRBs) are, have a look at these 1-2 minutes long videos recorded in various languages. It is pretty interesting to hear the same material spoken in serval languages. This effort was done as part of the IAU 2022 General assembly (IAUGA 2022) in Busan, South Korea, for the FRB Symposium (FRB 2022).

I contributed the German version, which is available from the IAU website and as a local copy.