RNA in blood reveals signs of pre-eclampsia before symptoms occur, and the issue of urine in our sewage and what can be done about it.In this episode:00:46 Predicting pre-eclampsiaCell-free RNA circulates in the blood and can give clues as to what is going on in the body. This can be used to detect disease before symptoms occur. Now researchers have analysed cell-free RNA in pregnant people and have found it can give early warning signs of a serious, and sometimes fatal, disorder of pregnancy — pre-eclampsia.Research Article: Moufarrej et al.07:19 Research HighlightsUpgrading machine vision by modelling it on human eyes, and stacked skeletons which could show attempts at repair after European tomb raiders.Research Highlight: Retina-like sensors give machines better visionResearch Highlight: ‘Spines on posts’ hint at ancient devotion to the dead09:55 The problems of peeSewage and the way it is managed can cause serious problems, for example contaminants in waste can lead to harmful algal blooms. One of the major causes of this is urine, and so some researchers have been promoting a deceptively simple solution — separate out the urine.News Feature: The urine revolution: how recycling pee could help to save the worldBook Review: Toilets – what will it take to fix them?16:40 Briefing ChatWe discuss some highlights from the Nature Briefing. This time, how China has planned to make this year’s Winter Olympics carbon neutral, and how a new radio telescope in Namibia will help us understand black holes.Nature News: China’s Winter Olympics are carbon-neutral — how?Nature News: Major African radio telescope will help to image black holesSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
 See acast.com/privacy for privacy and opt-out information.