My article, Alien Life: Marx and the Future of the Human, is now available at Academia.
It was published as:
Rikowski, G. (2003) Alien Life: Marx and the Future of the Human, Historical Materialism: Research in Critical Marxist Theory, Volume 11 Issue 2, pp.121-164.
The article can be viewed on Academia at: http://www.academia.edu/10986589/Alien_Life_Marx_and_the_Future_of_the_Human
It was a polished and heavily edited version of a paper I presented a few years earlier at one of the Birkbeck College Seminars on Marx, Individuals & Society, run by the late Cyril Smith: Marx and the Future of the Human (2000).
This paper is also on Academia, at: http://www.academia.edu/6043714/Marx_and_the_Future_of_the_Human
For those interested in the interface of Marxism and Post/Trans-humanism, my article Education, Capital and the Transhuman may also be of value.
This article is also at Academia, at:
Also of interest on this theme is Planet of the Capitorg
This can also be found at Academia:
@ Academia: http://independent.academia.edu/GlennRikowski