TechnologyMillions of phones create most complete map ever of the ionosphere Researchers mapped Earth’s ionosphere, part of the upper atmosphere, using signal data from 40 million phones – a method that could improve GPS accuracy and help track space weather ¿ìè¶ÌÊÓÆµ
Space¿ìè¶ÌÊÓÆµ recommends Brian Cox's new series, Solar System The books, TV, games and more that ¿ìè¶ÌÊÓÆµ staff have enjoyed this week Culture