World
Engineers print first light sail capable of interstellar speeds
A team from UPenn, Caltech, and UCLA has printed a nanolayered light sail that reflects over 50% of laser energy and weighs under 1 gram per square meter, me...
A team from UPenn, Caltech, and UCLA has printed a nanolayered light sail that reflects over 50% of laser energy and weighs under 1 gram per square meter, me...