On the path of genius: In the scientific version of the Grand Tour, Mick Hamer traces the story of ideas that shook the world Features
Iceland’s hot rocks: In the middle of the spreading Atlantic is Iceland, a geological marvel with a rift valley, the original geyser and an energy supply that does not depend on burning carbon. Frederik Pohl reports Features
The company of wolves: William Green finds that tracking wolves involves more close encounters with the prey than the predator Features
Can we grow younger?: In the past decade, a natural human hormone has been shown to reverse the signs of ageing. But eternal youth comes at a price, as Helen Saul discovers Features
A wool-comber’s guide to the planets: Panic seized a small town in the Netherlands when people read that the end of the world was nigh. But Eise Eisinga knew what would calm them down . . . Features
When the trains don’t come: British Rail is still battling to beat the chaos that comes with a really cold snap. But with a tiny research budget, says Graeme Ewens, delays seem inevitable Features
Rich pickings for cotton’s pioneers: A single patent taken out by an American company gives it rights over all forms of genetically engineered cotton – even those not yet invented News
On the path of genius: In the scientific version of the Grand Tour, Mick Hamer traces the story of ideas that shook the world Features
Iceland’s hot rocks: In the middle of the spreading Atlantic is Iceland, a geological marvel with a rift valley, the original geyser and an energy supply that does not depend on burning carbon. Frederik Pohl reports Features
The company of wolves: William Green finds that tracking wolves involves more close encounters with the prey than the predator Features
Can we grow younger?: In the past decade, a natural human hormone has been shown to reverse the signs of ageing. But eternal youth comes at a price, as Helen Saul discovers Features
A wool-comber’s guide to the planets: Panic seized a small town in the Netherlands when people read that the end of the world was nigh. But Eise Eisinga knew what would calm them down . . . Features
When the trains don’t come: British Rail is still battling to beat the chaos that comes with a really cold snap. But with a tiny research budget, says Graeme Ewens, delays seem inevitable Features
Forum: Inherently self-intersted – Sanjida O’Connell believes we should rethink our attitudes towards conservation
Forum: When bliss is ignorance – Ralph Estling muses on the honesty of the wisest man in ancient Greece