Is a planetary surface the right place for an expanding technological civilization?.

Here is my advice as we begin the century that will lead to 2081. First, guard the freedom of ideas at all costs. Be alert that dictators have always….

Dictators have always played on the natural human tendency to blame others and to oversimplify..

Don't regard yourself as a guardian of freedom unless you respect and preserve the rights of people you disagree with..

More important than the material issue . . . the opening of a new, high frontier will challenge the best that is in us . . . the new lands waiting to….

Clearly our first task is to use the material wealth of space to solve the urgent problems we now face on Earth: to bring the poverty-stricken segmen….

We should ask, critically and with appeal to the numbers, whether the best site for a growing advancing industrial society is Earth, the Moon, Mars, ….

The fatalism of the limits-to-growth alternative is reasonable only if one ignores all the resources beyond our atmosphere, resources thousands of ti….

It is the hope of those who work toward the breakout from planet Earth that the establishment of permanent, self-sustaining colonies of humans off-Ea….