The “Münster Astro-Seminar” is an event that has been held annually for more than 20 years, always at the end of September/beginning of October from Friday to Saturday and at the Physics Department of the University. The target group is an interested audience from all walks of life — and of course, the admission is free. During these two days, the current research and the latest results on specific topics from the fields of space research, astrophysics, astro-particle physics and cosmology are being presented in lectures and discussions by a few selected experts and scientists from these fields, and this always in a scientifically comprehensible and even in an enjoyable and entertaining way.