#Sunjammer launched by SpaceX - electric #solar sail clean propulsion for ever

World’s Largest Solar Sail Headed To Space Next Year

Image Credit: NASA

We found that a Sunjammer-derived sail

could visit up to six NEAs within six years of being launched. This would be impossible with chemical rockets and might not be achievable by electric propulsion. And it’s all because the sail uses no propellant … deriving its thrust from sunlight, making it a very ‘green’ space propulsion system,” Les Johnson, deputy manager of the Advanced Concepts Office at NASA’s Marshall Space Flight Center in Huntsville, AL, said.

source: cleantechnica.com