Spaceships pushed by LIGHT – the future of space travel?

DIANNA COWERN: This episode is brought to you by Squarespace. Squarespace, build it beautiful. Imagine a spacecraft with a huge, shiny sail attached, like a kite, accelerating through space. But there’s no wind in space. This sail ship is pushed by sunlight. Think about it. Photons, or particles of light, have no mass, and yet […]