My latest book is “Gibt es auf der dunklen Seite vom Mond Aliens?” , published in 2017. This is written for children, answering questions from children about space & the universe. My popular science book “Elefanten im All” describes the history and future of life and the universe.  It is also available in English under the title “Elephants in Space”, published by Springer. The German version is currently out of print and I will release an updated and revised version in 2019. I am particularly proud of “Da Draussen – Leben auf unserem Planeten und anderswo” (2014), the story of life on Earth and what life out there amongst the stars could be like. It is available in German (with Kein & Aber) and in Dutch (with NieuwAmsterdam: “Hallo daar!”). I am currently writing a new book for Kein & Aber, available in May 2019 – more details to follow soon!