Solar sailing is a topic of growing popular and media interest. Solar sail propulsion will mak...
What was our planet like before the advent of our modern civilization? What effects has our ci...
Human civilization has evolved to the point at which we can consider tapping space resources a...
This book provides information on the planning of space initiatives that can help humans tap the ...
This book presents a visionary concept for future development of space travel. It describes th...
What was our planet like in years past? How has our civilization affected Earth and its ecolog...
This book presents a visionary concept for future development of space travel. It describes th...
In terms of the scale of the galaxy, both in space and time, we humans are new comers. Though we ...