A light sail astrobiology precursor mission to Enceladus and Europa
Upper bounds on technoemission rates from 60 years of “silence”
Chasing nomadic worlds: A new class of deep space missions
CARINA: A near-Earth D-type asteroid sample return mission
UFOs : Unidentified Aerial Phenomena: Observations, Explanations and Speculations
Searching for technosignatures in exoplanetary systems with current and future missions
Astronautische Raumfahrt : Beginn eines neuen Zeitalters
Expedition ins Sternenmeer : Perspektiven, Chancen und Risiken einer interstellaren Raumfahrt
Concepts for future missions to search for technosignatures
Technical Fundamentals (I): Orbit, Attitude, and TT&C
Management (III): Quality Management and Risk Control
A joint mind consideration of the Drake equation in the search for extraterrestrial intelligence