Solar Sails are the Future of Space Travel One of the biggest challenges facing space exploration is propulsion. Our main go-to, rocket fuel, is heavy, expensive, and can easily run out during travel. Fortunately, the solution might come in the form of solar sails. Facebook Prev Article Next Article Space Checkout these cool gadgets... Related Posts Plunging To Earth: Space Station Refuelling Craft Is Out Of Control Why This Mysterious Dwarf Planet Is Baffling Scientists “World’s first battery-powered rocket” readied for launch What’s the Deal with Life on Mars? What Do We Know? Weird object spotted beyond Neptune Did We Find Another Planet In Our Solar System?