Plans are being made to build roads on the moon using focused beams of sunlight. Hear about it at Urban Legends and Stranger truths. Experiments with lasers are revealing a way to melt lunar dust into solid paving slabs. A beam of concentrated sunlight could be used to build paved roads on the moon by melting lunar dust, according to a proof of concept experiment involving lasers and a substance resembling moon dusk. Such roads could be useful for infrastructure for future lunar missions