NASA Exploring Solar Sailing Technology, Turning Sun's Rays Into Thrust - Core77.com

Long-distance ocean travel began with watercraft using zero-emission propulsion systems. Gigantic sails harnessed the power of the wind. As technology developed, oceangoing craft switched to fossil-fuel-based propulsion. Fascinatingly, spacecraft may be takin…

Long-distance ocean travel began with watercraft using zero-emission propulsion systems. Gigantic sails harnessed the power of the wind. As technology developed, oceangoing craft switched to fossil-… [+1969 chars]

full article...