Essays and Manifestos
Links
The Top 3 Reasons to Colonize Space
http://www.space.com/missionlaunches/colonize_why_011008-1.html
SPACE.com asks Freeman Dyson and two other space-colonization enthusiasts why we should go beyond our home planet.
Top Ten Reasons to Inhabit Outer Space
http://www.space.com/scienceastronomy/solarsystem/tenreasons_lead_000723.html
Report from the news service space.com about experts' opinions on why we should colonize space.
Why We Do -- and Must -- Go Into Space
http://www.nsschapters.org/policy-cmte/files/WHY-JGL_302.pdf
Essay by Jeffrey Liss of the National Space Society, on the many reasons behind our drive to do things in space.