A new study co-led by the University of Oxford and Google Cloud has shown how general-purpose AI can accurately classify real changes in the night sky - such as an exploding star, a black hole tearing apart a passing star, or a fast-moving asteroid - and explain its reasoning, without the need for complex training. Published today in Nature Astronomy , the study by researchers from the University of Oxford, Google Cloud, and Radboud University demonstrates that a general-purpose large language