This was
your sky.

Solar Sail

For nearly 400 years, the idea of solar sailing has captivated astronomers. Johannes Kepler first suggested that vessels might navigate space using sails, much like comet tails are blown by a solar breeze. Sunlight does produce a force, and a large, reflective sail could propel a spacecraft. This illustration represents a concept explored by NASA for such a mission, showing the potential of this futuristic propulsion.