Carl Sagan's Solar Sail Is Ready For Its First Test Flight

“There’s just a tremendously exciting prospect called solar sailing. [It] travels on the radiation and particles that come out of the sun, the wind from the sun. Because it has a constant acceleration, it can get you around the inner part of the solar system a lot faster...than the usual sorts of rocket propulsion.” »5/09/15 3:30pm5/09/15 3:30pm