This week, Chris dives back into the murky world of research misconduct, to try to find out how much AI tools like ChatGPT are being used to write scientific papers, and how much of a problem it is; and Cat updates us on the search for planets orbiting other stars, including a pink, fluffy, fairy-floss planet.Andrew Gray 2024, ChatGPT "contamination": estimating the prevalence of LLMs in the scholarly literature, arXiv:2403.16887. https://doi.org/10.48550/arXiv.2403.16887Chris Stokel-Walker 2024, AI Chatbots Have Thoroughly Infiltrated Scientific Publishing, Scientific American. https://www.scientificamerican.com/article/chatbots-have-thoroughly-infiltrated-scientific-publishing/Weixin Liang et al. 2024, Mapping the Increasing Use of LLMs in Scientific Papers, arXiv:2404.01268. https://doi.org/10.48550/arXiv.2404.01268Barkaoui et al. 2024, An extended low-density atmosphere around the Jupiter-sized planet WASP-193 b, Nature Astronomy. https://doi.org/10.1038/s41550-024-02259-y