Published articles on space in print media

Book chapters

• “When Will Voyager 1 Leave the Solar System?”, in Kelvin F. Long (ed.), Beyond the Boundary: Exploring the science and culture of interstellar spaceflight (Initiative for Interstellar Studies, 2014), p.63-75.


• “Halfway There!”, novelette, in Terence J. Henley (ed.), Visionary: A science fiction anthology in the spirit of the British Interplanetary Society (British Interplanetary Society, 2014), p.169-233.

Technical papers

• “Staggered Launch Sequences for Fleets of Interstellar Worldships”, JBIS, vol.69 no.9/10 (September/October 2016), p.326-330.


• “The Bottleneck Effect on Interplanetary and Interstellar Growth over the Coming Millennium”, JBIS, vol.69 no.1 (January 2016), p.20-26.


• “The Starship Philosophy: Its Heritage and Competitors”, JBIS, vol.67 no.11/12 (Nov./Dec. 2014), p.447-459.


• “A Parameter Space as an Improved Tool for Investigating Extraterrestrial Intelligence”, JBIS, vol.67 no.6 (June 2014), p.224-231.


• “The Long-Term Growth Prospects for Planetary and Space Colonies”, JBIS, vol.65 no.6 (June 2012), p.200-217.


• “The Emergence of the Worldship (II): A Development Scenario”, JBIS, vol.65 no.4/5 (April/May 2012), p.155-175.


• “The Emergence of the Worldship (I): The Shift from Planet-Based to Space-Based Civilisation”, JBIS (Journal of the British Interplanetary Society), vol.65 no.4/5 (April/May 2012), p.140-154.

Technical correspondence

• “Von Neumann Probes, Errors and the Absence of Evidence for Extraterrestrial Civilisations”, JBIS, vol.69 no.4 (April 2016), p.148-150, with response by Axel Kowald on p.150-152.


• “Embryo Space Colonization: A Reconsideration”, JBIS, vol.67 no.3 (March 2014), p.127-128.


• “Comments on ‘First Interstellar Missions, Considering Energy and Incessant Obsolescence’ by Marc Millis, JBIS, 63, pp.434-443, 2010”, JBIS, vol.64 no.9/10 (Sept./Oct. 2011), p.341-342, with response by Marc Millis on p.343.

Popular articles

• “Elon Musk and Mars – looking for a snowball effect”, Room, #4 (10) Winter 2017, p.10-15.


• “Von der Raumstation zum Mond und dem Mars”, Raumfahrt Concret, Heft 92 (2016), p.29-31 (Deutsche Bearbeitung: Silvia Mutterer).


• “Settlement of Mars: is it possible?”, Spaceflight, vol.58 no.4 (April 2016), p.136-137.


• “From Space Station to the Moon and Mars”, Spaceflight, vol.57 no.11 (November 2015), p.432-433.


• “Zu den Sternenräumen – Interstellare Raumfahrt von Übermorgen”, Raumfahrt Concret, Heft 84/85 (4/5/2014), p.18-21.


• “The future of space flight: the case for growth”, Spaceflight, vol.55 no.9 (September 2013), p.351.


• “Opening the final frontier”, Spaceflight, vol.55 no.2 (February 2013), p.57-59.


• “America needs strategy for space settlement”, Spaceflight, vol.53 no.8 (August 2011), p.295.


• “Strategic role of asteroid mining”, Spaceflight, vol.53 no.4 (April 2011), p.137-138.


• “The Moon – an important place in human affairs”, Spaceflight, vol.53 no.2 (February 2011), p.46.


• “Battle between old and new: Time for commercial development – or back to the Moon?”, Spaceflight, vol.52 no.7 (July 2010), p.252-256.


• “Projekt Ikarus – Sohn des Dädalus”, translated by Jacqueline Myrrhe, Raumfahrt Concret, Heft 64/65 (4/5/2010), p.36-39.


• “Project Icarus – son of Daedalus: BIS symposium report”, Spaceflight, vol.51 no.12 (December 2009), p.454-455.


• “Lost promise of the Space Shuttle: The quest for more efficient access to space”, Spaceflight, vol.51 no.9 (September 2009), p.330-334.


• “Can space save planet Earth? BIS symposium report”, Spaceflight, vol.51 no.6 (June 2009), p.236-237.


• “A visionary British engineer: Reaction Engines’ chief talks to Spaceflight”, Spaceflight, vol.50 no.11 (November 2008), p.420-424.


• “Space for the mass market: BIS conference – European developments in space tourism”, Spaceflight, vol.49 no.3 (March 2007), p.92-95.


• “A growth-oriented UK space strategy: Leading the way to a profitable future”, Spaceflight, vol.49 no.1 (January 2007), p.20-23.


• “Space tourism: The key to low-cost access to space”, Spaceflight, vol.48 no.6 (June 2006), p.212-215.


• “Europe’s Martian dream: ESA’s first design study for sending astronauts to Mars”, Spaceflight, vol.48 no.4 (April 2006), p.136-139.


• “Space: Philosophy of the Future”, Spaceflight, vol.37 no.12 (December 1995), p.426.