This week we saw new horizons dawn for green transportation as NASA's Nanosail-D became the first solar sail spacecraft to orbit the earth and President Obama issued a call for one million electric vehicles in his State of the Union Address.

ENGADGET: Inhabitat's Week in Green: the power plant you can ski, and NASA's orbiting Nanosail-D

As a result Geostorms, which could be launched as soon as 2005, has a good chance of being the first spacecraft to fly using a solar sail.

ECONOMIST: Rockets are not the only way to travel through outer space