Health A new mitochondrial theory of Alzheimer's deserves serious attention A “grand unifying theory” of brain ageing suggests malfunctioning mitochondria might be to blame for Alzheimer’s and other brain conditions. And this new avenue of exploration already has some potential therapies at the ready News
Technology AI masters video game 6000 times faster by reading the instructions An artificial intelligence has learned to master an Atari skiing game in days of playing time rather than the decades it took a specialist DeepMind AI, simply by reading the instructions written for humans before it started News
Health Changes to surrogacy laws must consider future reproductive technology A reform of surrogacy law in the UK could have major ramifications as reproductive technology advances. We need to look at the relationship between procreation and parenthood, says Teresa Baron News
Humans Relics illuminate the wreck of HMS Gloucester, a 17th-century warship Shipwrecked off the Norfolk coast in 1682, the HMS Gloucester was rediscovered in 2007. A new exhibition showcases some of the items found on board Regulars
Health Restoring the brain’s mitochondria could slow ageing and end dementia The discovery that faulty metabolism is at the root of many brain diseases suggests a surprising transplant could be the way to protect our brains from the ravages of ageing Features
Life Flight Paths review: Why understanding migration may save bird species Solving the mysteries of bird migration with technology not only unlocks unexpected secrets but is crucial to conservation efforts, says Rebecca Heisman in her fascinating first book Culture
Environment How to do a health check on your garden’s vital earthworm population Earthworms are a great indicator of the state of soil. Science of gardening columnist Clare Wilson explains how to tell how many you have - and how to entice more naturally, if needed Regulars
Is it a fossil? Is it a beehive? Scientists can't make up their minds Feedback investigates opposing views about what, exactly, is residing on a rock near Bhopal in India, while also exploring what happens when you listen to unpleasant music Regulars