Thousands of studies have shown acupuncture to be little more than a placebo, and herbal remedies have been barely tested. There is no case for public funding, argues David Colquhoun
Support from leading voice in academic medicine is significant in campaign for reform
It is sobering to think that our telescopes can observe only a tiny fraction of the cosmos, writes Marcus Chown
A policy revolution is under way to improve our well-being. Are its motives genuine? Niki Seth-Smith reports
Neil deGrasse Tyson's remake of Carl Sagan's classic series is worthy of the hype – it even introduced my six-year-old to the vastness of the universe, says Dale DeBakcsy
Cheap and easy to deliver, a new mental health treatment is all the rage. But should we be asking tougher questions about its effectiveness?
We live in an age of relentless innovation – and it's all because our ancestors started planting crops, says Marcus Chown