Health Alzheimer's bacterial link reiterates the importance of our microbiome A bacterium seems to cause Alzheimer's as well as gum disease, hinting that our microbial denizens may be involved in many diseases we thought weren't infectious News
Health Powerful whole-species gene editing tool fails first tests in mice Pest populations of black rats and other rodents might eventually be eradicated with gene drives When it comes to mammals, both the optimism and the fears about gene drives are overblown. So say a team who have tested the concept in mice for the first time. Their studies in mice suggests that existing gene drives … News
Humans Can scanning books really reveal if the US is becoming more tolerant? A team analysed 200 years' worth of books The words used in millions of books show how US culture has generally become more permissive, leading to both innovation and risky behaviour. That is according to an analysis of books published in the US between 1800 and 2000. However, the study overlooks the fact that books … News
Life Monarch butterflies' beautiful wing scales enable their epic migration THIS may look like the folds of a snake but don't be fooled — it is actually an extreme close-up of a monarch butterfly wing. To capture the entire wing, California-based photographer Chris Perani took 2100 separate exposures, each just 3 micrometres apart, and then stitched them together. The hefty magnification is achieved using a … Regulars
Life Life’s secret ingredient: A radical theory of what makes things alive How does inanimate matter come to breathe, thrive and reproduce? Explaining this magic means overhauling nature’s laws, says physicist Paul Davies Features
Physics Time Tries All Things review – Take time out to enjoy a dreamlike show String theory, triangulation, relativity - who cares if physicists trying to explain time have reached an impasse? A new show presses pause on hunting for answers Culture
Earth From the archives: Does dowsing really help you find water? The ancient practice of water divining is still used across the world to locate water sources. Forty years ago, we wondered whether it might actually work Regulars
Feedback: Planting a flag in great Pacific plastic patch Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more Regulars