ScienceExperiment will use microwaves to send electricity from orbitJapan aims to launch a 2.5-square-kilometer solar panel into space by 2050. (Japan Space Systems)MANA KURODAApril 29, 2026 05:24 JSTTOKYO -- Japan plans to conduct an experiment to transmit electricity generated with solar panels in space to Earth using microwaves, a potential world first that could help solve power shortages and aid in future lunar exploration.