“I was glad to read this book, and I learned some new things from it. I am happy to recommend it to anyone interested in a brief summary of the technical aspects of the Artemis programme as conceived in its early years.” (Ian Crawford, The Observatory, Vol. 141 (1282), June, 2021)“The book is an excellent basis to understand the further struggle for human space exploration of Moon and Mars, and allows the reader to form his own well-founded opinion and to grasp the technical problems still to be solved. … A ‘treat’ for insiders, a reference manual for those interested in human spaceflight and an easily digestible book for laypeople. Predicate: Highly valuable!” (Joachim J. Kehr, Journal of Space Operations& Communicator, February, 2021)