NASA's New Solar Sail Spacecraft Will Shine So Bright We'll See It From Earth

Depending on the mission they've been created to fulfill spacecraft can be powered by a variety of technologies. Presently, the most widespread is the one that uses propellant and rocket engines. But a new kind of propulsion, ideal to power small uncrewed spacecraft in exploratory missions of the solar system is gaining increased traction: solar sails. (continue reading...)