Close to 4 billion people live in cities. As the driver of environmental challenges, accounting for nearly 70% of the world's carbon emissions, and as sites of critical social disparities, with 863 million dwellers now living in slums, urban settlements are at the heart of global change. This momentum is unlikely to disappear, as approximately 70 millio […]
Many Earth-like exoplanets that orbit red dwarf stars in the "habitable zone" — that just-right range of distances at which liquid water can exist — are actually too hot to host life, a new study suggests.
NASA's plans to expand an inflatable habitat aboard the International Space Station have given rise to a new "space-craft." The space agency is offering "origaBEAMi," a print, fold and inflate-it-yourself miniature paper model.