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Astronaut John W. Young, Associate Director (Technical) NASA Johnson Space Center, delineates a number of reasons for developing extra terrestrial technologies and provides a list of priorities. These include development of uninterrupted power supplies, heavy lifting rocketry, and advanced pressure suits. Another area discussed is the need for enclosed biosystems, 100 percent recycling of food, water, and wastes.

By Robert Roy Britt, 30 October 2001.

This is a discussion of the effectiveness of fear as a factor in promoting extra terrestrial colonization. The upshot is that fear would be essentially unproductive for long-term motivation for getting off the planet. Potential disasters can, however, serve to get people thinking about it: asteroid collisions; intentional (or even unintentional) viral outbreaks; and, pollution.

Here's another bit to try and start some conversation; the only hope for Planet Earth and for Humanity is to move off this planet, at least move all of our heavy industries.