Some time before 2050, satellites collecting solar power and beaming it back to Earth will become a primary energy source, streaming terawatts of electricity continuously from…

Some time before 2050, satellites collecting solar power and beaming it back to Earth will become a primary energy source, streaming terawatts of electricity continuously from…

Japan’s first lunar orbiter successfully blasted into space on Friday on the most extensive mission to investigate the moon since the United States’s Apollo programme began…