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Their efficiency rates far exceed those of conventional silicon panels I T is commonly claimed, and also true, that enough sunlight falls on Earth in the course of an hour to meet a year’s worth of global power needs. Some of that sunlight is currently converted into electricity by arrays of solar panels : by the end of 2023, these panels covered almost 10,000 square kilometres of Earth’s surface, producing some 1,600 terawatt-hours of electricity, about 6% of that generated worldwide. Discover more SpaceX is NASA’s biggest lunar rival The company’s successes are also showing up the agency’s failings Tubeworms live beneath the planetary crust around deep-sea vents The conditions are hot, sulphurous and low in oxygen Elon Musk’s SpaceX has achieved something extraordinary If SpaceX can land and reuse the most powerful rocket ever made what can’t it do? Could life exist on one of Jupiter’s moons? A spacecraft heading to Europa is designed to find out Noise-dampening tech could make ships less disruptive to marine life Solutions include bendy propellers and “acoustic black holes” Meet Japan’s hitchhiking fish Medaka catch rides on obliging birds, confirming one of Darwin’s hunches.
