Satellites launched into outer space could send back improved warnings of dangerous solar storms thanks to a breakthrough in the way scientists use space weather measurements. Experts from the University of Reading have found that using satellite data that is less reliable but is returned to Earth rapidly can be used to improve the accuracy of solar wind forecasts — which are harmful streams of charged particles sent from the sun — by nearly 50%. Their research, published today in Space Weather, could pave the way for agencies, such as the Met Office, to provide more accurate forecasts for severe space weather, which can cause blackouts and harm human health.