Spaceships, Habitats and Terraformation

Advanced Propulsion for the 21st Century - Robert Frisbee

Atomic Rockets - Project Rho

Centauri Dreams

Project Icarus

100 Year Starship

Antimatter Space Propulsion

Orbiter Space Flight Simulator

Kerbal Space Program

Space Propulsion Systems

Relativistic Starship Calculator

Space Settlements: A Design Study by Al Globus

Space Settlements

Dyson Sphere FAQ by Anders Sandberg

Megastructures - an overview

Orbital Greenhouses from Island One

Space Warfare part I - part II - part III

Starflight Without Warp Drive with G. Landis, D. Brin, R. Forward, J. Vos Post

The Moon Miner's Manifesto

Hydrogen Ice Spacecraft for Robotic Interstellar Flight by Jonathan Vos Post

Gunbuster video about warp speed

Terraforming Information Pages by Martyn Fogg

G Nordley on Interstellar Travel