Wright was one of the first to introduce the concept of propulsion using light pressure. He reports on his continuing work, mostly at the Jet Propulsion Laborat

Solar sailing - using the sun as a propellant - offers the possibility of low-cost long-distance missions that are impossible with conventional spacecraft. This

The range of solar sailing is very vast; it is a fully in-space means of propulsion that should allow us to accomplish various mission classes that are literall

The reality of sunlight-based sailing in space began in May 2010, and solar sail technology and science have continued to evolve rapidly through new space missi

What are our motivations for going into space? Where does our long-term space future lie? Why, and how, should we strive to reach, if not for the stars, at leas