A Million Reasons to Go To Space
Brief thoughts from dozens of (mostly) NY space activists on why we need to be in space.
Bioterrorism May Spur Space Colonies
Plans to save civilization by sending people and important documents into space in a 21st Century "Noah's Ark" might get a boost from fears of bioterrorism.
Colonies in space may be only hope, says Hawking
Interview with Britain's Daily Telegraph in which eminent cosmologist Stephen Hawking warns that the human race is likely to be wiped out before the millennium is out unless we set up colonies in space.
Foreign Affairs: A Hopeful Future for Mankind
Louis J. Halle, formerly of the U.S. Department of State, writes in Foreign Affairs (Summer 1980) that space colonization will protect humanity in the event of a global nuclear war (subscription/payment required for full article).
Letters from the National Space Society
A collection of letters in support of space exploration, sent to and published in newspapers and other media around the world.
National Space Society: Statement of Philosophy
Vision of "people living and working in thriving communities beyond the Earth".
NSS Policy Committee: Position Statements and Aler
Collection of statements on space policy, including essays on colonization and use of space resources.
Our Future in the Cosmos
Essay by Isaac Asimov about the need for the future settlement of space.
Sagan's rationale for human spaceflight - The
Essay describes space scientist Carl Sagan's thoughts on why human flights to space should continue.
Solar Power Satellites
A brief essay on Solar Power Satellites, a key element of O'Neil's High Frontier program
Somewhere Else Entirely
A reminder for the 21st century, on why O'Neill's vision of orbital habitats still trumps "planetary chauvinism", at least in the medium term.
Space and Human Survival (Sylvia Engdahl)
An essay by science fiction author Sylvia Engdahl on why colonizing space is essential to human survival.
Space and survival - Wikipedia, the free encyclope
Encyclopedia article on the relationship between the colonization of space and the long-term survival of the human species.
Space Colonization and SETI
Interview with Gerard K. O'Neill by John Kraus of COSMIC SEARCH.
Space Quotes to Ponder
Over 100 brief quotations explaining why expansion of civilization into space is essential to the future survival and evolution of humankind.
Spaceflight or Extinction
Manifest page with links to scientists advocating space colonization.
Syliva Engdahl on space
Essays, quotes, and a radio interview from science fiction author Sylvia Engdahl, about the importance of expanding beyond Earth.
The Big Picture
Essay by astronaut John Young about the need to preserve our species by putting humans permanently on the moon and Mars.
The Case for Space Colonization Now
Detailed argument for space colonization by Oscar Falconi.
The Greater Earth Manifesto
A strong statement on the human space imperative by a group of European organizations.
The Preparation: Space Colonization
Detailed discussion by Rex Stephens about his book on the need for space colonization, asteroid mining, and transhumans.
The Top 3 Reasons to Colonize Space
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
Report from the news service space.com about experts' opinions on why we should colonize space.
Why We Do -- and Must -- Go Into Space
Essay by Jeffrey Liss of the National Space Society, on the many reasons behind our drive to do things in space.