NASA awards $2 million to advance rainbow-coloured solar sail project - New Scientist

As part of its Innovative Advanced Concepts programme, NASA has given a major award to a team working on solar sails that can move in any direction using ridges that diffract light like prisms do

By Leah Crane Diffractive solar sails depicted in a conceptual illustration MacKenzi Martin Funding of $2 million has gone to researchers developing a new type of solar sail as part of NASAs Innov… [+1952 chars]

full article...