Pure air, dephlogisticated air or a new element? Josephy Priestley and Antoine Lavoisier get to grips with new gases in this month’s comic
How an extra line in the solar spectrum kicked off a search for the ‘missing metals’ that turned out to be noble gases
Read how Andre Geim’s Friday night experiments led to the discovery of graphene, a single layer of carbon atoms
Enzymes and metal–organic frameworks share some common features and are being investigated for industrial use. Clare Sansom reports
Losing weight – and not putting it back on – is about much more than willpower. Nina Notman reports on the drugs trying to penetrate the complex metabolic web of hunger and satiety.