Other astronautical sites:

Astrogator’s Logs (Athena Andreadis)

Behind the Black (Robert Zimmerman)

British Interplanetary Society

Centauri Dreams (Paul Gilster / Tau Zero Foundation)

Crowlspace (Adam Crowl)

Initiative for Interstellar Studies

I4IS Blog (Initiative for Interstellar Studies)

Jan Woerner (ESA DG 2015– )


Rocketeers (Duncan Law-Green)

Selenian Boondocks (Jonathan Goff)

Space Review (Jeff Foust)

Spaceflight 101

Transterrestrial Musings (Rand Simberg)

Wayne Hale

New in 2015:

Short story The Marchioness

AE posts:

2017: Mars…

2016: Stragegic goal for manned spaceflight…

2015: The Pluto Controversy, Mars, SETI…

2014: Skylon, the Great Space Debate, exponential growth, the Fermi “paradox”…

2013: Manned spaceflight, sustainability, the Singularity, Voyager 1, philosophy, ET…

2012: Bulgakov vs. Clarke, starships, the Doomsday Argument…

2011: Manned spaceflight, evolution, worldships, battle for the future…

2010: Views on progress, the Great Sociology Dust-Up…

Chronological index

Subject index

General essays:

Index to essaysincluding:

Talk presented to students at the International Space University, May 2016

Basic concepts of Astronautical Evolution

Options for Growth and Sustainability

Mars on the Interstellar Roadmap (2015)

The Great Sociology Debate (2011)

Building Selenopolis (2008)


Astronautics and human progress

Astronautical Evolution is a blog of the 21st-century Enlightenment, space and society, which has been appearing approximately monthly since 2005.

* * * Latest post in 2017: Elon Musk’s “Great Martian” * * *

2016 posts   /   2015 posts   /   2014 posts   /   2013 posts   /   2012 posts   /   2011 posts   /   2010 posts.

Chronological index   /   Subject index.

AE portal from Wordpress   /   AE portal from Blogger.

General essays outside the chronological sequence.

Selected chapters from a planned book entitled Astronautical Evolution are occasionally being made available online.

Old AE home page to end 2014 with archive of older writings (links not working at Oct. 2015!).

Basic concepts of Astronautical Evolution – the application of evolutionary growth and progress to the astronautical expansion of civilisation from its planet of origin out into the broader astronomical universe.

Stephen Ashworth is the owner of this website. I am based in Oxford, UK. All textual material on this blog is by myself unless otherwise attributed. E-mail me to comment, subscribe, unsubscribe, or contribute your own views: <sa (at) astronist dot demon dot co dot uk>.

I am not a space professional, but work in academic publishing at the Voltaire Foundation within Oxford University. I have been a Fellow of the British Interplanetary Society since the 1980s, and an associate of the Initiative for Interstellar Studies since its founding in 2012.

See this page for my articles and book chapters on space published in print media.