TechnologyElon Musk wants to turn our homes into one big power plant Tesla has already built a massive battery in Australia, and now plans to fit more in 50,000 homes to create the world's largest virtual power plant Insight
EarthThese strange lines of cloud are seeded by pollution from ships Much as an aeroplane leaves contrails, streaks of white cloud condense onto the tiny particles thrown into the air by the exhausts of travelling ships Regulars