Free fruit and running clubs seem laudable but many of us want to make our own choices

The dream of its founder, Dmitri Mendeleev, lives on in chemistry today

The Nasa mission will offer clues to the earliest days of the solar system 

Embryo selection will come with personal and societal costs

The measure is the last remaining major unit to be based on a physical object

Species are vanishing under our watch thanks to demand for energy, land and water

Computerised assaults are easy to unleash but hard to trace, and befuddle the enemy

At last the work of female scientists is appreciated, not appropriated

Facts feed into a picture of archaic beasts that lived 570m years ago then vanished

A study in mice links high-fat diets with impaired reasoning and memory

The UN is discussing who owns the genetic sequences of millions of marine creatures

The drugs sector receives funding out of all proportion to the results it delivers

Recent research rekindles debates about whether there is a fixed human lifespan

Official recognition of social media addiction could well be next in line

Wealthy collectors’ desire for old bones risks getting in scientists’ way